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Alphabetical Locality Index - O

Search returned: 4560 items

  • O-42 pit, Pine Point, Northwest Territories, Canada
  • Oacoma, Lyman Co., South Dakota, USA
  • Oadby, Leicestershire, England, UK
  • Oades Pit (MRDS - 10128857), Wasco Co., Oregon, USA
  • Oades Pit (MRDS - 10226673), Wasco Co., Oregon, USA
  • Oage mine (Ou'age mine), Shimokita peninsula, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • O. A. Griffin Prospect, Jefferson Co., Alabama, USA
  • Oahu Island, Honolulu Co., Hawaii, USA
  • Oak Bar dredge (Klamath dredge), Oak Bar, Monument Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • Oak Bar, Monument Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • Oak Basin group, Granite and North Granite Districts, Mineral Range, Beaver Co., Utah, USA
  • Oak Bottom placer, Somes Bar, Klamath Mts, Siskiyou Co., California, USA
  • Oakbottom Stream Works, Darley, Linkinhorne, Liskeard District, Cornwall, England, UK
  • Oak Bower Church, Hart Co., Georgia, USA
  • Oak Bowery area (Old Bowery area), Chambers Co., Alabama, USA
  • Oak Bowery Prospect, Chambers Co., Alabama, USA
  • Oak Chapel Shale Pit, Cumberland Co., Illinois, USA
  • Oak Creek 1-4 claims, Hackberry Mountain area, Sierra Ancha District, Sierra Ancha Mts, Gila Co., Arizona, USA
  • Oak Creek 2, Crook Co., Wyoming, USA
  • Oak Creek deposit, Oak Creek, San Carlos area, San Carlos Indian Reservation, Gila Co., Arizona, USA
  • Oak Creek deposit, Oak Creek Valley, Fort Apache Indian Reservation, Navajo Co., Arizona, USA
  • Oak Creek District (Ilse District), Custer Co., Colorado, USA
  • Oak Creek District (Red Gorge District), Routt Co., Colorado, USA
  • Oak Creek Grade Prospect (Basin Ranch), Wet Mountains Area, Fremont Co., Colorado, USA
  • Oak Creek Occurrence, Crook Co., Wyoming, USA
  • Oak Creek, Pima Co., Arizona, USA
  • Oak Creek placers, Oak Creek, Minnehaha placers, Minnehaha Creek, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Oak Creek Prospect, Garfield Co., Utah, USA
  • Oak Creek Prospect, Notom Area, Garfield Co., Utah, USA
  • Oak Creek, Wet Mountains Area, Custer Co., Colorado, USA
  • Oak, Cripple Creek District, Teller Co., Colorado, USA
  • Oakdale Colliery, Oakdale, Caerphilly (Gwent; Monmouthshire), Wales, UK
  • Oakdale-Knights Ferry area, Stanislaus Co., California, USA
  • Oakdale quartzite locality, Sterling, Worcester Co., Massachusetts, USA
  • Oakdale Ranch, Bryson, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • Oak Dam East deposit, Roxby Downs, Andamooka Ranges - Lake Torrens area, South Australia, Australia
  • Oakes "limestone" quarry, Lisbon, Grafton Co., New Hampshire, USA
  • Oakes and Reese Mine (Grand Prize and Badger), Hunter Valley, Mariposa Co., California, USA
  • Oakesdale Copper Company, Java District, Dawson Co., Montana, USA
  • Oakey Creek deposit, Red Range, Gough Co., New South Wales, Australia
  • Oakey Hill Lodes, Jindera, Hume Co., New South Wales, Australia
  • Oakfield Brick Pit, Fond Du Lac Co., Wisconsin, USA
  • Oakfield & Byron Quarries, Fond Du Lac Co., Wisconsin, USA
  • Oakfield, Genesee Co., New York, USA
  • Oakfield Quarry (Oakfield Stone Company), Fond Du Lac Co., Wisconsin, USA
  • Oak Flat and East Fork groups (Patrick Creek group), Shelly Creek Ridge, Lawyers Bar, Patrick Creek District, Klamath Mts, Del Norte Co., California, USA
  • Oak Flat Mine, Wingate Bar, Clear Creek, Klamath Mts, Siskiyou Co., California, USA
  • Oak Flat Placer, Nevada Co., California, USA
  • Oak group, Granite and North Granite Districts, Mineral Range, Beaver Co., Utah, USA
  • Oak Grove, Aguanga Mountain District (Smith Mountain District), San Diego Co., California, USA
  • Oak Grove Canyon No. 1 prospect, Galiuro Mts, Graham Co., Arizona, USA
  • Oak Grove Canyon No. 2 prospect, Galiuro Mts, Graham Co., Arizona, USA
  • Oak Grove Canyon No. 3 prospect, Galiuro Mts, Graham Co., Arizona, USA
  • Oak Grove Deposit (Ethyl Corp. Deposit), West Tennessee, Henry Co., Tennessee, USA
  • Oak Grove Fork, Clackamas Co., Oregon, USA
  • Oak Grove Fork, Clackamas River Localities, Clackamas Co., Oregon, USA
  • Oak Grove Mine, Deadwood, Deadwood District, Klamath Mts, Siskiyou Co., California, USA
  • Oak Grove Nos. 1 & 2 Mines, Patrick Creek, Patrick Creek District, Klamath Mts, Del Norte Co., California, USA
  • Oak Grove prospect, Tyrone Area, Burro Mountains District, Grant Co., New Mexico, USA
  • Oak Grove Ranch Property, Pagosa Springs Area, Archuleta Co., Colorado, USA
  • Oak Grove Road Sandstone Deposit No. 1, Trempealeau Co., Wisconsin, USA
  • Oak Grove Road Sandstone Deposit No. 2, Trempealeau Co., Wisconsin, USA
  • Oak Hall Quarry, College Township, Centre Co., Pennsylvania, USA
  • Oak Hill area, San Jose, Santa Clara Co., California, USA
  • Oak Hill Columbite Locality, Standish, Cumberland Co., Maine, USA
  • Oak Hill graphite mine, Washington, Sullivan Co., New Hampshire, USA
  • Oak Hill Group, Nevada Co., California, USA
  • Oak Hill Mine, Lewis, Essex Co., New York, USA
  • Oak Hill Mine (Olsen Mine), Cooperstown, Tuolumne Co., California, USA
  • Oak Hill Prospect, Caldwell Co., North Carolina, USA
  • Oak Hill Quarry, Oak Hill, San Jose, Santa Clara Co., California, USA
  • Oak Hill Quarry, Oak Hill, Westford, Middlesex Co., Massachusetts, USA
  • Oak Hill, San Jose, Santa Clara Co., California, USA
  • Oak Hill silver mine, Harvard, Worcester Co., Massachusetts, USA
  • Oak Hill, Standish, Cumberland Co., Maine, USA
  • Oak Hill, Westford, Middlesex Co., Massachusetts, USA
  • Oak Hollow occurrence, Cade Mountain, Klamath Mts, Siskiyou Co., California, USA
  • Oakhurst, Madera Co., California, USA
  • Oakie Mine, Elk Ridge, San Juan Co., Utah, USA
  • Oak Knoll Placer Mine (Shoemaker claim; Bunker Hill claim), Big Pines, Mount Baldy District, San Gabriel Mts, Los Angeles Co., California, USA
  • Oakland; Antioch & Eastern Railroad Company Mine, Moraga, Diablo Range, Contra Costa Co., California, USA
  • Oakland Asbestos Mine, Lake Toxaway, Transylvania Co., North Carolina, USA
  • Oakland, Burrillville, Providence Co., Rhode Island, USA
  • Oakland Co., Michigan, USA
  • Oakland Consolidated Mine (Oakland; Machine), El Dorado Co., California, USA
  • Oakland Creek Prospect (formerly known as Diomede Creek), Port Clarence District, Nome Borough, Alaska, USA
  • Oakland group, Searchlight District, Clark Co., Nevada, USA
  • Oakland Hills, Diablo Range, Alameda Co., California, USA
  • Oakland Level Mine (Brady Mine; McFeeley Level), Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Oakland Magnesite Company prospect (Deer Creek and North Mine; Oakland Magnesite Mine; Langley lease), Deer Creek area, Porterville, Tulare Co., California, USA
  • Oakland Mine, Cementosa Wash, Sheep Tanks District, Little Horn Mts, Yuma Co., Arizona, USA
  • Oakland Mine (Oakland Copper Mine), Copper Canyon, Mineral King, Sequoia National Park, Tulare Co., California, USA
  • Oakland Mine, Sierra Co., California, USA
  • Oakland mine (White Star; Universal), Caballo Mountain District, Sierra Co., New Mexico, USA
  • Oakland, Oakland Hills, Diablo Range, Alameda Co., California, USA
  • Oakland prospect, Cooney, Hillgrove, Sandon Co., New South Wales, Australia
  • Oakland Prospect, Fayette Co., Tennessee, USA
  • Oakland Quartz Mine, Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Oaklawn, Cranston, Providence Co., Rhode Island, USA
  • Oaklawn Soapstone quarry, Oaklawn, Cranston, Providence Co., Rhode Island, USA
  • Oakleigh Creek mine (Mt Pelion wolfram mine), Upper Forth Valley, Tasmania, Australia
  • Oak Level, Franklin Co., Virginia, USA
  • Oak Level, Henry Co., Virginia, USA
  • Oakley mine, Central Tennessee Ba-F-Pb-Zn District, Wilson Co., Tennessee, USA
  • Oakley Peak Prospect, Bristol Bay District, Lake and Peninsula Borough, Alaska, USA
  • Oakley Prospects, Henry Co., Virginia, USA
  • Oakley Valley Stone; Inc, Cassia Co., Idaho, USA
  • Oakman Group Mine, Washington District (Omega District), Nevada Co., California, USA
  • Oak Mesa Prospect, Tuolumne Co., California, USA
  • Oak Mine, Alleghany, Forest District (Alleghany; Chips Flats; Minnesota), Sierra Co., California, USA
  • Oak Mine (August; Crown Point; Black Oak), El Dorado Co., California, USA
  • Oak Mine, Hope Mtn, Ringwood, Passaic Co., New Jersey, USA
  • Oak Mine, Winona District, Josephine Co., Oregon, USA
  • Oakmont, Sonoma Mts, Sonoma Co., California, USA
  • Oak, Nuckolls Co., Nebraska, USA
  • Oak Park Clay Prospect, Riverside Co., California, USA
  • Oak Park Mine, Greaterville District, Santa Rita Mts, Pima Co., Arizona, USA
  • Oak Patch claim, Dutch Flat District (Gold Run District; Towie District), Placer Co., California, USA
  • Oak Ranch Quarry No. 1, Columbia Co., Oregon, USA
  • Oak Ridge, Guilford Co., North Carolina, USA
  • Oak Ridge Occurrence, Anderson Co., Tennessee, USA
  • Oakridge Pit & Plant, Lane Co., Oregon, USA
  • Oak Ridge prospect, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Oak Ridge Quarry, Greenwich, Fairfield Co., Connecticut, USA
  • Oak Ridge Quarry (Roverud Construction Company), Houston Co., Minnesota, USA
  • Oak Ridge, Santa Clara Co., California, USA
  • Oak Ridge, St. Clair Co., Alabama, USA
  • Oak Ridge, West Milford Township, Passaic Co., New Jersey, USA
  • Oak Run, Shasta Co., California, USA
  • Oaks Corners Quarry (General Crushed Stone Company Quarry), Oaks Corners, Ontario Co., New York, USA
  • Oak Shade Placer, Tuolumne Co., California, USA
  • Oaks Knob Mine (Burnt Mine), Plumtree, Spruce Pine District, Avery Co., North Carolina, USA
  • Oaks Mine, Bullion Mountain, Klamath Mts, Siskiyou Co., California, USA
  • Oak Spring area, Magdalena District, Socorro Co., New Mexico, USA
  • Oak Spring District, Nye Co., Nevada, USA
  • Oak Springs Baptist Church, Gilkey, Rutherford Co., North Carolina, USA
  • Oak Springs Gravel Cap Mine, Carrizo Mts (Carrizo Range), Apache Co., Arizona, USA
  • Oak Springs mine, Eastside mines, Shiprock District, San Juan Co., New Mexico, USA
  • Oak Springs Mine, Mariposa Co., California, USA
  • Oak Springs Plot No. 10 Mine, Carrizo Mts (Carrizo Range), Apache Co., Arizona, USA
  • Oaks Prospect, Amador Co., California, USA
  • Oaks Prospect, Orange Co., North Carolina, USA
  • Oak Stone Quarry (Oak Stone Company; Oakfield Quarry), Fond Du Lac Co., Wisconsin, USA
  • Oaks Tunnel, Mogollon District, Catron Co., New Mexico, USA
  • Oak Valley Placer Mine, Yuba Co., California, USA
  • Oak View, Ventura Co., California, USA
  • Oakville District, Mayacmas Mts (Mayacamas Mts), Napa Co., California, USA
  • Oakville, Oakville District, Mayacmas Mts (Mayacamas Mts), Napa Co., California, USA
  • Oakville Quarries, Oakville, Grays Harbor Co., Washington, USA
  • Oakwood Gulf reef, Dalmorton, Gresham Co., New South Wales, Australia
  • Oakwood Lake Pit, San Joaquin Co., California, USA
  • Oakwood Mill Deep Iron Mine, Forest of Dean, Gloucestershire, England, UK
  • Oakwood Placer Mining Company, Placer Co., California, USA
  • Oakwood Prospects, Montgomery Co., Tennessee, USA
  • Oakwood Salt shaft, Detroit, Wayne Co., Michigan, USA
  • Oaky Creek lead, Aconite, Copeton Dam, Hardinge Co., New South Wales, Australia
  • Oamities Mine, Oamities, Windhoek District, Khomas Region, Namibia
  • Oamities, Windhoek District, Khomas Region, Namibia
  • O and B Mine, Monte Cristo, Monte Cristo District, Snohomish Co., Washington, USA
  • O and O Placer Mine, Moonlight Peak, Taylorsville District, Plumas Copper Belt, Plumas Co., California, USA
  • O and T Placer Mine, Trinity Co., California, USA
  • O. A. Prince Tract No. 1 Prospect, Hickman Co., Tennessee, USA
  • O. A. Prince Tract No. 2 Prospect, Hickman Co., Tennessee, USA
  • Oarasawa- Akutozawa Mine, Waga-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Oaro, Canterbury, South Island, New Zealand
  • Oashi mine (Ou'ashi mine), Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Oasis Divide, Silver Peak District, Esmeralda Co., Nevada, USA
  • Oasis group (Delshay group), Richmond Basin District, Apache Peaks, Gila Co., Arizona, USA
  • Oasis, Mayacmas Mts (Mayacamas Mts), Mendocino Co., California, USA
  • Oasis Mine, Sierra Co., California, USA
  • Oasis mine, Sylvania District, Esmeralda Co., Nevada, USA
  • Oasis, Mono Co., California, USA
  • Oasis Occurrence (Mas 23 1026), Circle Cliffs, Garfield Co., Utah, USA
  • Oasis, Pequop District, Elko Co., Nevada, USA
  • Oasis Placer, Uravan District, Montrose Co., Colorado, USA
  • Oasis Prospect, Barker District, Judith Basin Co., Montana, USA
  • Oasis Pumice Deposit (Cornucopia), Oasis area, Inyo Co., California, USA
  • Oatfield Mine, Crenver & Wheal Abraham (incl. Wheal Sarah; Great Drym Consols), Crowan, Mount's Bay District, Cornwall, England, UK
  • Oat Hill Extension Mine (Anderson Mine), Aetna Springs, East Mayacmas District, Mayacmas Mts (Mayacamas Mts), Napa Co., California, USA
  • Oat Hill Mines, Aetna Springs, East Mayacmas District, Mayacmas Mts (Mayacamas Mts), Napa Co., California, USA
  • Oatman Amalgamated Extension group, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Amalgamated Mine (Oatman Amalgamated Gold Mine), Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Belle Mine, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Champion Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Combination Mine, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Extension Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Fire Agate claims (Cuesta claims), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Half Moon Mining Co. Mine (Half Moon No. 3), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Imperial Mines Co. Mine (Oatman Imperial No. 2; Sunrise Mine), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Nora Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Northwestern Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman - NW of, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Queen Mine, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Rand Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Southern Mine, Boundary Cone, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Syndicate Mine (Putney group), Boundary Cone, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman United Mine, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oatman Venture Mine (Oatman Mine), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oaxaca, Mexico
  • O. Axness Stone Quarry, Trempealeau Co., Wisconsin, USA
  • Oban, Clarke Co., New South Wales, Australia
  • Obara Mine, Miyagi Prefecture, Tohoku Region, Honshu Island, Japan
  • Obata mine, Kameoka City, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • Obato-Shela (Ovatu-Shela) bauxite deposit, Shah Wali Kot District, Kandahar Province (Qandahar Province), Afghanistan
  • O. B. Clements Prospect, Monroe Co., Georgia, USA
  • Obecnice, Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Obejo mine, Cardeña, Córdoba, Andalusia, Spain
  • Obelisk Mine (Peacock), Cataract District (Comet District; Basin District), Jefferson Co., Montana, USA
  • Obelisk No. 1 Mine, Fresno Co., California, USA
  • Obenemase, Ashanti gold belt, Western Region, Ghana
  • Oberaar-Grimsel water tunnel, Oberaar power station, Grimsel area, Hasli Valley, Bern, Switzerland
  • Oberaar lake area, Grimsel area, Hasli Valley, Bern, Switzerland
  • Oberaar power station, Grimsel area, Hasli Valley, Bern, Switzerland
  • Oberalp pass area, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
  • Oberalpstock (south slope), Strem Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
  • Oberarnsdorf, Rossatz-Arnsdorf, Wachau, Lower Austria, Austria
  • Oberbachem, Wachtberg, Siebengebirge, North Rhine-Westphalia, Germany
  • Oberbargen, Bargen, Schaffhausen, Switzerland
  • Oberbergen, Kaiserstuhl, Baden-Württemberg, Germany
  • Oberbettingen, Hillesheim, Eifel, Rhineland-Palatinate, Germany
  • Oberbillig Deposit (Oberbillig-Quartz Creek), Valley Co., Idaho, USA
  • Oberbrumberg, Enchenreuth, Schwarzenbach am Wald, Franconian Forest, Franconia, Bavaria, Germany
  • Oberbuchach, Kirchbach, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria
  • Ober Creek Prospect, Delta River District, Southeast Fairbanks Borough, Alaska, USA
  • Oberdielfen, Wilnsdorf, Siegerland, North Rhine-Westphalia, Germany
  • Oberdorf an der Laming, Laming valley, Bruck an der Mur, Styria, Austria
  • Oberdorf seam, Köflach - Voitsberg lignite deposit, Köflach, Styria, Austria
  • Oberdrauburg, Kreuzeck group, Carinthia, Austria
  • Obere Glashütte, Rajokenkogel, Soboth, Koralpe, Styria, Austria
  • Oberehrendingen, Baden, Aargau, Switzerland
  • Oberellenbach, Alheim, Hesse, Germany
  • Oberentersbach, Zell am Harmersbach, Black Forest, Baden-Württemberg, Germany
  • Obere Ödenwinkelscharte, Stubach valley, Hohe Tauern, Salzburg, Austria
  • Oberer Burgstall, Schareck, Naßfeld valley, Gastein valley, Hohe Tauern, Salzburg, Austria
  • Oberer Hackenkopf, Seebach valley, Obersulzbach valley, Hohe Tauern, Salzburg, Austria
  • Obererl (Ehl), Linz am Rhein, Westerwald, Rhineland-Palatinate, Germany
  • Oberes Brett, Große Zirknitz valley, Zirknitz, Goldberg group, Hohe Tauern, Carinthia, Austria
  • Obere Stafel, Geisspfad area, Binn Valley, Wallis (Valais), Switzerland
  • Oberfahlenbach, Eisenbach, Titisee-Neustadt, Black Forest, Baden-Württemberg, Germany
  • Oberfeld Shale Quarry, Potter Valley area, Coastal Range, Mendocino Co., California, USA
  • Obergailberg, Lesach valley, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria
  • Obergesteln, Goms, Wallis (Valais), Switzerland
  • Obergurgl, Gurgler valley, Ötz valley, North Tyrol, Tyrol, Austria
  • Oberhaag, Aigen im Mühlkreis, Mühlviertel, Upper Austria, Austria
  • Oberhaag, Styria, Austria
  • Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland
  • Oberharmersbach, Harmersbach valley, Zell am Harmersbach, Black Forest, Baden-Württemberg, Germany
  • Oberhaus Alp, Wolfbach valley, Hohe Tauern, Salzburg, Austria
  • Oberhausen, Ruhr Coal Mining area, North Rhine-Westphalia, Germany
  • Oberhohndorf, Zwickau, Saxony, Germany
  • Oberholtzer Quarry, Martindale, Lancaster Co., Pennsylvania, USA
  • Oberhütte (slag locality), Volkstedt, Eisleben, Mansfeld Basin, Saxony-Anhalt, Germany
  • Ober-Kainsbach, Reichelsheim, Odenwald, Hesse, Germany
  • Oberkassel (Obercassel), Bonn, Siebengebirge, North Rhine-Westphalia, Germany
  • Oberkienstock, Rossatz, Rossatz-Arnsdorf, Wachau, Lower Austria, Austria
  • Oberkirch, Black Forest, Baden-Württemberg, Germany
  • Oberkirch, Nunningen, Solothurn, Switzerland
  • Oberkotzau, Münchberg Metamorphic complex, Franconia, Bavaria, Germany
  • Oberkrimml (Hinterkrimml), Krimml, Krimmler Ache valley, Hohe Tauern, Salzburg, Austria
  • Oberkurzheim, Pöls valley, Niedere Tauern, Styria, Austria
  • Oberlahr, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
  • Oberlausitz, Saxony, Germany
  • Oberleidenberg, Bad Weißenbach, Saualpe, Carinthia, Austria
  • Oberlend, Lend, Schwarzach, Salzburg, Austria
  • Oberlin Hill Mine, Yreka, Siskiyou Co., California, USA
  • Obermamau, Karlstetten, Mostviertel, Lower Austria, Austria
  • Obermatt Quarry, Ennetbürgen, Nidwalden (Nidwald), Switzerland
  • Obernburg am Main, Elsenfeld, Odenwald, Franconia, Bavaria, Germany
  • Oberndorf, Salzburg, Austria
  • Oberon, Westmoreland Co., New South Wales, Australia
  • Ober-Ostern, Fürth, Odenwald, Hesse, Germany
  • Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany
  • Oberpfannenstiel, Aue, Erzgebirge, Saxony, Germany
  • Ober Plattnerbode, Weisstannen Valley, St Gallen, Switzerland
  • Oberpleis, Siebengebirge, North Rhine-Westphalia, Germany
  • Oberpuchenau, Linz, Upper Austria, Austria
  • Oberpullendorf, Burgenland, Austria
  • Ober Quarry (Edward Kraemer and Sons; Inc.), La Crosse Co., Wisconsin, USA
  • Ober-Ramstadt, Odenwald, Hesse, Germany
  • Oberreitgraben, Felben valley, Hohe Tauern, Salzburg, Austria
  • Oberriet, Rhine valley, St Gallen, Switzerland
  • Oberroßbach, Dillenburg District, Hesse, Germany
  • Oberrötenbach, Gremmelsbach, Triberg, Black Forest, Baden-Württemberg, Germany
  • Oberrotweil, Kaiserstuhl, Baden-Württemberg, Germany
  • Obersakoparnig, Köstenberg, Velden, Carinthia, Austria
  • Obersaxen, Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
  • Oberschaffhausen, Bötzingen, Kaiserstuhl, Baden-Württemberg, Germany
  • Oberscheibe, Schwarzenberg District, Erzgebirge, Saxony, Germany
  • Oberscheld, Dillenburg, Dillenburg District, Hesse, Germany
  • Oberschlema, Schlema, Schlema-Hartenstein District, Erzgebirge, Saxony, Germany
  • Oberschöna, Freiberg District, Erzgebirge, Saxony, Germany
  • Oberschrammach glacier, Schrammacher, Zamser Grund (Zams valley), Ziller valley, North Tyrol, Tyrol, Austria
  • Oberschulenberg, Clausthal-Zellerfeld, Harz, Lower Saxony, Germany
  • Obersdorf, Sangerhausen, Saxony-Anhalt, Germany
  • Obersdorf, Siegen, Siegerland, North Rhine-Westphalia, Germany
  • Obersemlach, Hüttenberg, Friesach - Hüttenberg area, Carinthia, Austria
  • Oberstadtfeld, Daun, Eifel, Rhineland-Palatinate, Germany
  • Oberste Weide clay pit, Allendorf, Greifenstein, Hesse, Germany
  • Obersulzbach valley, Hohe Tauern, Salzburg, Austria
  • Obertalbach valley, Schladminger Tauern, Schladming, Styria, Austria
  • Obertauern, Radstädter Tauern, Salzburg, Austria
  • Obertilliach, Gailbach valley, East Tyrol, Tyrol, Austria
  • Obertraun, Hallstatt, Upper Austria, Austria
  • Oberviechtach, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany
  • Oberwald, Goms, Wallis (Valais), Switzerland
  • Oberwart, Burgenland, Austria
  • Oberweißburg (Ober-Weisburg), Zederhaus valley, Lungau, Salzburg, Austria
  • Oberwiesenthal, Niederschlag-Bärenstein District, Erzgebirge, Saxony, Germany
  • Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
  • Oberwölz, Niedere Tauern, Styria, Austria
  • Oberzeiring, Pöls valley, Niedere Tauern, Styria, Austria
  • Oberzimmermoos, Hof, Brixlegg - Rattenberg, Brixlegg - Schwaz area, Inn valley, North Tyrol, Tyrol, Austria
  • Obetsuzawa mine (Kobetsuzawa mine), Sapporo, Hokkaido, Japan
  • Obichnik Au-Ag deposit, Rhodope Mts, Haskovo Oblast (Khaskovo Oblast), Bulgaria
  • Óbidos, Leiria District, Portugal
  • Obie mine, Kurashiki City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Obi, Hachiman, Sutama-cho, Hokuto City, Kinpuzan district, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Obion Co., Tennessee, USA
  • Obion Pit, Obion Co., Tennessee, USA
  • Obira mine, Ono-gun, Oita prefecture, Kyushu Region, Japan
  • Obir caves, Hochobir, Karawanken, Carinthia, Austria
  • O. B. Jones Prospect, Straight Creek District, Claiborne Co., Tennessee, USA
  • O. B. Joyful Mine (Thurman; O. B. J.; O.B.J. Mine; J. Mine; Tyler and Aster; Panamint Mines Company), Inyo Co., California, USA
  • Oblaga Cu-Au deposit, Urad Rear Banner (Wulate Houqi), Bayan Nur League (Bayannao'er Prefecture), Inner Mongolia Autonomous Region, China
  • Öblarn, Niedere Tauern, Styria, Austria
  • Oblong Mine (Oblong claim), Yavapai Co., Arizona, USA
  • Obluchie, Khabarovskiy Kray, Far-Eastern Region, Russia
  • Obman, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • Obnazhennaya pipe, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • Obnoxious Mine, Uravan District, Montrose Co., Colorado, USA
  • Obojnikgraben, Ebriach, Bad Eisenkappel (Bad Eisenkappl), Karawanken, Carinthia, Austria
  • Obora, Lubin, Lubin District, Legnica, Lower Silesia (Dolnośląskie), Poland
  • Obora, Skalice nad Svitavou, Boskovice (Boskowitz), South Moravia Region, Moravia (Mähren; Maehren), Czech Republic
  • Obotan mine, Nkran Hill, Western Region, Ghana
  • Obot (Aobaotu; Aobaodu) Fluorite deposit, Siziwang Banner (Siziwang Co.), Ulaan Chab League (Wulanchabu Prefecture), Inner Mongolia Autonomous Region, China
  • Obregon, Cargo Muchacho District (Hedges District; Ogilby District), Cargo Muchacho Mts, Imperial Co., California, USA
  • O'Brian Mine, Fruit Mountain, Klamath Mts, Siskiyou Co., California, USA
  • Obri Dul (Riesental), Krkonoše Mts (Riesengebirge), Hradec Králové Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • O'Brien and Tully Placer, El Dorado Co., California, USA
  • O'Brien Canyon prospect (O'Brien Mine; Silver Crown group of claims), O'Brien Canyon, Quartz Spring District, Death Valley National Park, Inyo Co., California, USA
  • O'Brien Canyon, Quartz Spring District, Death Valley National Park, Inyo Co., California, USA
  • O'Brien claim, Buffalo Mountain District, Humboldt Co., Nevada, USA
  • O'Brien Deposit, Mariposa Co., California, USA
  • OBrien farm, North Russell, St. Lawrence Co., New York, USA
  • O'Brien (Former Town of), Haultain Township, Gowganda area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
  • O'Brien Lode, Eagle Creek District, Baker Co., Oregon, USA
  • O'Brien Manganese Prospect, Baker Co., Oregon, USA
  • O'Brien Manganese prospect, Cimarron District (Salt Well District), Cimarron & Sheridan Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
  • O'Brien Mine, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
  • O'Brien Mine (Cowboy Mine; Charcoal Canyon group), Cerbat, Cerbat District, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • O'Brien Mine (Hidden Lead), Frog Pond Basin District, Granite Co., Montana, USA
  • O'Brien Mine, Jolon, Fort Hunter-Liggett Military Reservation, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • O'Brien Mine, Riverside Co., California, USA
  • O'Brien Mine (S-Bend Mine), Garden Valley Area, El Dorado Co., California, USA
  • O'Brien Mine, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Obrien Ore Banks, Baltimore Co., Maryland, USA
  • O'Brien Ore Banks, Prince Georges Co., Maryland, USA
  • O'Brien Placer, Uravan District, Montrose Co., Colorado, USA
  • O'Brien Reserve Bu-14 Prospect (Butler Brothers; Hanna Mining Company Agt), Mesabi Range, Itasca Co., Minnesota, USA
  • O’Briens Creek Fossicking Area, Mount Surprise, Tablelands Region, Queensland, Australia
  • O'Brien Shale Quarry (Highway 128 Shale Quarry), Navarro, Coastal Range, Mendocino Co., California, USA
  • Obri Schmidmatte, Rosswald, Simplon pass area, Brig, Wallis (Valais), Switzerland
  • Obrist Pit, Wasco Co., Oregon, USA
  • Obritzberg-Rust, Mostviertel, Lower Austria, Austria
  • Obrotshischte, Varna, Varna Oblast, Bulgaria
  • Obsidian Butte, Niland, Imperial Co., California, USA
  • Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane Co., Oregon, USA
  • Obsidian Cliff, Yellowstone National Park, Park Co., Wyoming, USA
  • Obsidian No. 1 Prospect, Marysvale District (Marysvale Uranium area), Piute Co., Utah, USA
  • Obsidian Quarry, Silver Cliff District, Custer Co., Colorado, USA
  • Obsidian Ridge, Inyo Co., California, USA
  • Obsidian, Roubaix, Galena District, Lawrence Co., South Dakota, USA
  • Obsidian Tank, Coconino Co., Arizona, USA
  • Obstbaum Mine, Dörfel, Annaberg District, Erzgebirge, Saxony, Germany
  • Obwalden (Obwald), Switzerland
  • OBW Fry claim, Greenlee Co., Arizona, USA
  • OBW Prospect, Goose Lake, Park Co., Montana, USA
  • Øby, Sarpsborg, Østfold, Norway
  • Ocala, Marion Co., Florida, USA
  • Ocala Pit B, Marion Co., Florida, USA
  • Ocala Pit, Marion Co., Florida, USA
  • Ocala Quarry, Marion Co., Florida, USA
  • O'Callaghan Mine, Seeley, Imperial Co., California, USA
  • Ocampo, Coahuila, Mexico
  • Ocaña, Toledo, Castile-La Mancha, Spain
  • Ocashuico prospect, Azuay Province, Ecuador
  • Ocasión Mine, Sierra Minera de Cartagena-La Unión, La Unión, Murcia, Spain
  • Occasional Group Occurrence, Chandalar District, North Slope Borough, Alaska, USA
  • Occidental Chem. Corporation Properties (Hooker Chemical Company Properties), Columbia District, Maury Co., Tennessee, USA
  • Occidental Claim, Helena District (Spring Hill District), Lewis and Clark Co., Montana, USA
  • Occidental Claim, La Veta District, Huerfano Co., Colorado, USA
  • Occidental, Coast Range, Sonoma Co., California, USA
  • Occidental Lode, Comstock District, Storey Co., Nevada, USA
  • Occidental Lode Occurrence, Unorganized District, Custer Co., South Dakota, USA
  • Occidental Mine, Calaveras Co., California, USA
  • Occidental Mine, Castle Rock Springs area, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA
  • Occidental Mine, Fremont District, Hidalgo Co., New Mexico, USA
  • Occidental Mine, Grizzly Flat, Iowa Hill area, Iowa Hill District, Placer Co., California, USA
  • Occidental Mine (High Up; Oxidental), Sheridan District (Mill Creek District; Wisconsin District), Madison Co., Montana, USA
  • Occidental Mine Lot 37, Tehama Co., California, USA
  • Occidental Mine (Occidental group), Calico-Odessa group, Calico, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA
  • Occidental Mine (Occidental group), Low Divide, Low Divide District, Klamath Mts, Del Norte Co., California, USA
  • Occidental Mine (Occidental group), Obregon, Cargo Muchacho District (Hedges District; Ogilby District), Cargo Muchacho Mts, Imperial Co., California, USA
  • Occidental mine, Occidental Lode, Comstock District, Storey Co., Nevada, USA
  • Occidental Mine, Phillipsburg Area, Chloride District, Sierra Co., New Mexico, USA
  • Occidental mine, Reese River District, Lander Co., Nevada, USA
  • Occidental Occurrence, Uravan District, Montrose Co., Colorado, USA
  • Occidental prospect, Duncan Springs, Coastal Range, Mendocino Co., California, USA
  • Occidental Road, Occidental, Coast Range, Sonoma Co., California, USA
  • Occidental (Shotgun), Sierra Co., California, USA
  • Occidental vein, Poland-Walker railroad tunnel, Big Bug District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Occidental, Ward District, Boulder Co., Colorado, USA
  • Occidental WPA Quarry, Occidental, Coast Range, Sonoma Co., California, USA
  • Occident group of claims, Hum Bug District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Occident Mine (Occidental Mine; Horn Silver Mine), White Hills District, White Hills, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Occident Mine, Ophir Mountain, Murray District (Summit District), Shoshone Co., Idaho, USA
  • Occident Occurrence, Quartz Creek District, Gunnison Co., Colorado, USA
  • Occident Prospect, Amador Co., California, USA
  • Occident prospect (Amarillo; Wises Mine; Amrillo), Duncan Springs, Coastal Range, Mendocino Co., California, USA
  • Occident Prospect, Galena District, Blaine Co., Idaho, USA
  • Occident Tunnel Occurrence, Red Mountain District, San Juan Co., Colorado, USA
  • Occlini Pass (Grimmjoch), Ega Valley (Eggen Valley), Isarco Valley (Eisack Valley), Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
  • Occoquan Quarry (Occoquan Quarry Nos. 1 & 2), Fairfax Co., Virginia, USA
  • Occurrence (MRDS - 10007144), El Dorado Co., California, USA
  • Occurrence (MRDS - 10031979), Nevada Co., California, USA
  • Occurrence (MRDS - 10032099), Placer Co., California, USA
  • Occurrence (MRDS - 10035840), Trinity Co., California, USA
  • Occurrence (MRDS - 10035841), Trinity Co., California, USA
  • Occurrence (MRDS - 10035890), Trinity Co., California, USA
  • Occurrence (MRDS - 10035893), Trinity Co., California, USA
  • Occurrence (MRDS - 10035895), Trinity Co., California, USA
  • Occurrence (MRDS - 10035914), Trinity Co., California, USA
  • Occurrence (MRDS - 10103416), Trinity Co., California, USA
  • Occurrence (MRDS - 10103425), Trinity Co., California, USA
  • Occurrence (MRDS - 10111112), Sierra Co., California, USA
  • Occurrence (MRDS - 10111117), Sierra Co., California, USA
  • Occurrence (MRDS - 10116890), Sierra Co., California, USA
  • Occurrence (MRDS - 10140594), Shasta Co., California, USA
  • Occurrence (MRDS - 10141000), Sierra Co., California, USA
  • Occurrence (MRDS - 10164882), Sierra Co., California, USA
  • Occurrence (MRDS - 10165336), Shasta Co., California, USA
  • Occurrence (MRDS - 10165453), Shasta Co., California, USA
  • Occurrence (MRDS - 10166153), Tehama Co., California, USA
  • Occurrence (MRDS - 10189358), Sierra Co., California, USA
  • Occurrence (MRDS - 10189699), Sierra Co., California, USA
  • Occurrence (MRDS - 10190009), Sierra Co., California, USA
  • Occurrence (MRDS - 10213485), Sierra Co., California, USA
  • Occurrence (MRDS - 10214404), Yuba Co., California, USA
  • Occurrence (MRDS - 10214426), Yuba Co., California, USA
  • Occurrence (MRDS - 10232087), Shasta Co., California, USA
  • Occurrence (MRDS - 10236918), Nevada Co., California, USA
  • Occurrence (MRDS - 10237490), Sierra Co., California, USA
  • Occurrence (MRDS - 10237599), Sierra Co., California, USA
  • Occurrence (MRDS - 10237726), Sierra Co., California, USA
  • Occurrence (MRDS - 10238165), Sierra Co., California, USA
  • Occurrence (MRDS - 10256157), Nevada Co., California, USA
  • Occurrence (MRDS - 10262514), Shasta Co., California, USA
  • Occurrence (MRDS - 10286355), Shasta Co., California, USA
  • Occurrence (MRDS - 10286694), Sierra Co., California, USA
  • Occurrence (MRDS - 10286898), Sierra Co., California, USA
  • Occurrence No. 9390, Shah Wali Kot District, Kandahar Province (Qandahar Province), Afghanistan
  • Occurrences (Miners Group; MRDS - 10262444), Shasta Co., California, USA
  • Occurrences (MRDS - 10116981), Shasta Co., California, USA
  • Occurrences (MRDS - 10117042), Shasta Co., California, USA
  • Occurrences (MRDS - 10140798), Shasta Co., California, USA
  • Occurrences (MRDS - 10164819), Shasta Co., California, USA
  • Occurrences (MRDS - 10188031), Fresno Co., California, USA
  • Occurrences (MRDS - 10189741), Shasta Co., California, USA
  • Occurrences (MRDS - 10231841), Shasta Co., California, USA
  • Occurrences (MRDS - 10261669), Nevada Co., California, USA
  • Oceana Co., Michigan, USA
  • Oceana, San Diego Co., California, USA
  • Ocean Beach, San Francisco, San Francisco Co., California, USA
  • Ocean Co., New Jersey, USA
  • Ocean Drilling Program Hole 903C, Upper continental slope of New Jersey, Atlantic Ocean
  • Ocean Drilling Program Hole 904A, Upper continental slope of New Jersey, Atlantic Ocean
  • Oceanic Mine, Cambria, Cambria-Oceanic District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Oceanic Mine (San Luis Mine), Wilbur Canyon, San Luis Mts, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
  • Oceano Sand pit, Oceano, San Luis Obispo Co., California, USA
  • Oceano, San Luis Obispo Co., California, USA
  • Ocean Pond, Cabin Bluff deposit, Camden Co., Georgia, USA
  • Ocean Queen, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Oceanside, San Diego Co., California, USA
  • Oceanside, Tillamook Co., Oregon, USA
  • Ocean Spray, Uravan District, Montrose Co., Colorado, USA
  • Ocean Star Mine (Cooley), Washington District (Omega District), Nevada Co., California, USA
  • Oceanus Procellarum (Ocean of Storms), The Moon
  • Ocean View deposit, Hearst, Coastal Range, Mendocino Co., California, USA
  • Ocean View Mine (Mount Bishop), Pine Mountain deposit, Pine Mountain, Cambria, Cambria-Oceanic District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Oceanview Mine (MS 6452; MS 6848; Ocean View mine), Chief Mountain, Pala, Pala District, San Diego Co., California, USA
  • Oceanview mine (Oceanview adits), Elizabeth R. Mine (Hazel W. claim), Chief Mountain, Pala, Pala District, San Diego Co., California, USA
  • Ocean Wave, Fremont Co., Colorado, USA
  • Ocean Wave Group, Hermosa District, Sierra Co., New Mexico, USA
  • Ocean Wave Mine, Cripple Creek District, Teller Co., Colorado, USA
  • Ocean Wave Mine, Lake City, Lake City District (Lake District), Hinsdale Co., Colorado, USA
  • Ocean Wave Mine, Rosita District, Custer Co., Colorado, USA
  • Ocean Wave, Mt. Sneffels, Ouray Co., Colorado, USA
  • Oceola Mine, Sierra Co., California, USA
  • O C Group, Quartz Creek Pegmatite District, Gunnison Co., Colorado, USA
  • Ochee Springs Quarry (Johnston Soapstone Quarry), Johnston, Providence Co., Rhode Island, USA
  • Ocherbauer Inn, Steirisch-Tauchen, Friedberg, Styria, Austria
  • Ocher No. 33 Mine (American Pigment Corp. Mine), Pulaski Co., Virginia, USA
  • O Chhung, Môndól Kiri (Mondulkiri) Province, Cambodia
  • Ochiai Mine, Kohsai, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Ochiaizawa deposit, Hanaoka mine, Odate, Akita prefecture, Tohoku region, Honshu Island, Japan
  • Ochidani mine, Hyogo Prefecture, Kinki Region, Honshu Island, Japan
  • Ochil Hills, Tayside (Perthshire), Scotland, UK
  • Ochlocknee Pit, Thomas Co., Georgia, USA
  • Ochlocknee, Thomas Co., Georgia, USA
  • Ochoco Agate Mining Claim (Tualatin Valley Gem Club), Crook Co., Oregon, USA
  • Ochoco Creek, Jefferson Co., Oregon, USA
  • Ochoco Hgihway Pit (MRDS - 10128610), Crook Co., Oregon, USA
  • Ochoco Highway Pit (MRDS - 10099021), Crook Co., Oregon, USA
  • Ochoco Highway Pit (MRDS - 10225193), Crook Co., Oregon, USA
  • Ochoco Mine (Ophir-Mayflower), Howard District (Ochoco District; Bolivar District), Crook Co., Oregon, USA
  • Ochoco Mtns., Crook Co., Oregon, USA
  • Ochopee Quarry, Collier Co., Florida, USA
  • Ochre No. 1 and Ochre No. 2, Butte Co., California, USA
  • Ochre Patent MS 2711 claim, Yavapai Co., Arizona, USA
  • Ochre Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA
  • Ochre Springs Prospects (Asarco), Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
  • Ochrwyth Mine, Risca, Caerphilly (Gwent; Monmouthshire), Wales, UK
  • Ochs Clay-Brown County Pit (Springfield Pit), Brown Co., Minnesota, USA
  • Ochsenalm, Mandling, Schladming, Styria, Austria
  • Ochsenberg, Wiestal reservoir, Hallein, Salzburg, Austria
  • Ochsenboden, Pirknergraben (Pirkachgraben), Pirkach, Oberdrauburg, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria
  • Ochsenfeld, Albrunhorn - Turbhorn area, Binn Valley, Wallis (Valais), Switzerland
  • Ochsenhütte (slag locality), Grane Reservoir, Goslar, Harz, Lower Saxony, Germany
  • Ochsenkopf, Bockau District, Aue, Erzgebirge, Saxony, Germany
  • Ochsenkopf, Fichtelberg, Fichtelgebirge, Franconia, Bavaria, Germany
  • Ochsenkopf, Rothenhammer, Breitenbrunn District, Erzgebirge, Saxony, Germany
  • Ochsenriegel, Moschkogel - Weinebene area, Koralpe, Carinthia, Austria
  • Ochsenschlucht, Dellach, Kötschach-Mauthen, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria
  • Ochsenstolln, Kippenhain Mine (Kippenhayn Mine), Schreckenberg, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany
  • Ochsen valley, Silvretta group, Montafon, Vorarlberg, Austria
  • Ochsner-Rotkopf massif, Zemmgrund, Ziller valley, North Tyrol, Tyrol, Austria
  • Ochtendung, Polch, Eifel, Rhineland-Palatinate, Germany
  • Ochtiná, Rožňava Co., Košice Region, Slovakia
  • Ochtinská aragonite cave, Ochtiná, Rožňava Co., Košice Region, Slovakia
  • Ocio, Álava, Basque Country, Spain
  • Ock Mine, Happy Camp, Klamath Mts, Siskiyou Co., California, USA
  • O & C Land, Lane Co., Oregon, USA
  • Ocna de Fier-Dognecea District, Banat Mts, Caras-Severin Co., Romania
  • Ocna de Fier (Vaskö-Moraviţa; Vaskö-Moravicza; Eisenstein), Ocna de Fier-Dognecea District, Banat Mts, Caras-Severin Co., Romania
  • Ocna Sibiului (Vizakna; Salzburg), Sibiu Co., Romania
  • Ocnele Mari, Vâlcea Co., Romania
  • Ocoee mine, Ducktown District, Polk Co., Tennessee, USA
  • Oconee Clay Products Company Pits, Floyd Co., Georgia, USA
  • Oconee Co., Georgia, USA
  • Oconee Co., South Carolina, USA
  • Oconee River, Baldwin Co., Georgia, USA
  • Oconee Rock Quarry (Oconee County Rock Crusher; Oconee Quarry), Oconee Co., South Carolina, USA
  • O'Connell Blue Gravel, San Andreas, Calaveras Co., California, USA
  • O'Connell Brothers, Santa Clara Co., California, USA
  • O'Connell group, Contact District, Elko Co., Nevada, USA
  • O'Connell Mine (Greenwalls property; O'Connell Ranch Mine; O'Connell Number 1; Greenwalt), Coyote, Coyote District, Diablo Range, Santa Clara Co., California, USA
  • O'Connell Placer Mine, Oak Bar, Monument Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • O'Connell Placer Mine, Trinity Co., California, USA
  • O'Connell prospect, Cloverdale, Sonoma Co., California, USA
  • O'Connells Kyanite Deposit, Broken Hill, Yancowinna Co., New South Wales, Australia
  • O'Connel Quarry (Loren Slaght), Crawford Co., Wisconsin, USA
  • O'Conner Mine, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • O'Conner Prospect (Bunker Hill), Coeur d'Alene District, Shoshone Co., Idaho, USA
  • O'Conner (Sulfide Group; Farham Property), Pueblo District (Denio District), Harney Co., Oregon, USA
  • O'Connor Brothers prospect (North Elder Creek group), North Elder Creek, Tehama Co., California, USA
  • O'Connor Creek Mine, Fairbanks District, Fairbanks North Star Borough, Alaska, USA
  • O'Connor Farm Quarries, Howard Co., Maryland, USA
  • O'Connor Mine, Santa Rosa, Sonoma Co., California, USA
  • O'Connor prospect, Washington Camp-Duquesne District, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • O'Connor Province, Tarija Department, Bolivia
  • Oconnor Quarry (Holm Brothers Construction Company), Goodhue Co., Minnesota, USA
  • O'Connor Ranch deposits (Mount Bishop Mine), Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • O'Connors Reef, Drummond North Gold Field, Victoria, Australia
  • O'Connor Township, Thunder Bay District, Ontario, Canada
  • Oconto County Limestone Quarry, Oconto Co., Wisconsin, USA
  • Oconto Co., Wisconsin, USA
  • Oco (Ocho) geode deposits, Três Pinheiros, Fountoura Xavier, Rio Grande do Sul, Brazil
  • Ocotal Mine (Otatal Mine), Topia, Mun. de Topia, Durango, Mexico
  • Ocotepeque Department, Honduras
  • Ocotes Mine, Eujutla de Crespo, Mun. de Eujutla de Crespo, Oaxaca, Mexico
  • Ocotes Mine, San Francisco Telixtlahuaca, Mun. de San Francisco Telixtlahuaca, Oaxaca, Mexico
  • Ocotes Mine, Tlalpujahua, San Pedro y San Pablo de Tlalpujahua District, Mun. de Tlalpujahua, Michoacan, Mexico
  • Ocotillo, Alamo Springs District, Kofa Mts (S.H. Mts), Yuma Co., Arizona, USA
  • Ocotillo, Imperial Co., California, USA
  • Ocotillo Mine group, Owl Head, Ocotillo, Alamo Springs District, Kofa Mts (S.H. Mts), Yuma Co., Arizona, USA
  • Ocotillo, San Diego Co., California, USA
  • Ocotillos Mine, Temascaltepec de González (Temascaltepec), Mun. de Temascaltepec, Mexico, Mexico
  • Ocotillo Wells, San Diego Co., California, USA
  • Ocotlán de Morelos, Mun. de Ocotlán de Morelos, Oaxaca, Mexico
  • Ocqueoc Limestone Exposure Prospect, Presque Isle Co., Michigan, USA
  • Octave - East of, Octave, Weaver District (Virginia District; Mocking Bird District), Weaver Mts, Yavapai Co., Arizona, USA
  • Octave Mine (Joker Mine; Bonanza Mine), Octave, Weaver District (Virginia District; Mocking Bird District), Weaver Mts, Yavapai Co., Arizona, USA
  • Octave, Weaver District (Virginia District; Mocking Bird District), Weaver Mts, Yavapai Co., Arizona, USA
  • Octavia Prospect, Carbon Co., Wyoming, USA
  • Octavio Pagnan, Morro da Fumaça, Santa Catarina, Brazil
  • October Adit (October Adit 7; 9; 10; 11), Uravan District, Mesa Co., Colorado, USA
  • October, Lamartine District, Clear Creek Co., Colorado, USA
  • Octopus mine, Rochester District, Pershing Co., Nevada, USA
  • Ocumpaugh, Uravan District, San Miguel Co., Colorado, USA
  • Ocuri, Chayanta Province, Potosí Department, Bolivia
  • Ocus Stanley's Mine, Fisher Mtn, Mt Ida, Montgomery Co., Arkansas, USA
  • O.D. 1 claim (USGS PP 1361 locality 990), Gold Basin District, White Hills, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Odah quarry, Nasik District, Maharashtra, India
  • Odalfältet, Garpenberg, Hedemora, Dalarna, Sweden
  • Odate, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Ödbach stream, Dorfer Öd, Schneiderau, Stubach valley, Hohe Tauern, Salzburg, Austria
  • Odda, Hardangervidda, Hordaland, Norway
  • Odda, Hordaland, Norway
  • Oddar Méanchey Province, Cambodia
  • Odden II Mine, Kvikne Mines, Kvikne, Tynset, Hedmark, Norway
  • Odden I Mine, Kvikne Mines, Kvikne, Tynset, Hedmark, Norway
  • Odden Prospect, Kvikne Mines, Kvikne, Tynset, Hedmark, Norway
  • Oddessa Quarry, Meriwether Co., Georgia, USA
  • Oddie tunnel, Bald Mountain District, White Pine Co., Nevada, USA
  • Odd West pegmatite, Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada
  • Ödegärde mine, Mellby, Eksjö, Småland, Sweden
  • Ødegården Apatite mines, Bamble (Bamle), Telemark, Norway
  • Ødegården Quarry, Bamble (Bamle), Telemark, Norway
  • Ødegårdsbukta, Brunlanes, Larvik, Vestfold, Norway
  • Ødegårdssletten, Ånnerud (Ånnerød), Våler, Østfold, Norway
  • Odegi, Nassarawa (Nasarawa) State, Nigeria
  • Odel Jones Mine, Stokes Co., North Carolina, USA
  • Odell Allanite Prospect, Madison Co., North Carolina, USA
  • Odell, Gage Co., Nebraska, USA
  • Odell Group, Mariposa Co., California, USA
  • Odell Prospect (D. W. Harris Prospect), Powell River District, Claiborne Co., Tennessee, USA
  • Ödemiş, Izmir Province, Aegean Region, Turkey
  • Oden-Hatfield Limestone (Oden Hatfield Deposit), Douglas Co., Oregon, USA
  • Ödenkar, Kreuzkogel massif, Naßfeld valley, Gastein valley, Hohe Tauern, Salzburg, Austria
  • Ödenlanisch (Ebenlanisch), Pölla valley, Hafner group, Hohe Tauern, Carinthia, Austria
  • Oden Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Odenville Copper Prospect (Susie May Hall; Page-Newton Place), St. Clair Co., Alabama, USA
  • Odenwald, Baden-Württemberg, Germany
  • Odenwald, Franconia, Bavaria, Germany
  • Odenwald, Hesse, Germany
  • Ödenwinkel area, Stubach valley, Hohe Tauern, Salzburg, Austria
  • Ödenwinkel glacier, Stubach valley, Hohe Tauern, Salzburg, Austria
  • Oder adit, Oder valley, St Andreasberg District, Harz, Lower Saxony, Germany
  • Oderay mine, Ayopaya Province, Cochabamba Department, Bolivia
  • Oderbrück, Braunlage, Harz, Lower Saxony, Germany
  • Oderin Island, Placentia Bay, Newfoundland, Newfoundland and Labrador, Canada
  • Odersberga kaolinite quarries, Fjälkestad, Kristianstad, Skåne, Sweden
  • Oderteich reservoir, Oderbrück, Braunlage, Harz, Lower Saxony, Germany
  • Oder valley, St Andreasberg District, Harz, Lower Saxony, Germany
  • Ödeshög, Östergötland, Sweden
  • Ödesjön Norra quarry, Tranås, Småland, Sweden
  • Ödesjön quarry, Tranås, Småland, Sweden
  • Odessa Craters, Odessa, Ector Co., Texas, USA
  • Odessa Mine, Calico-Odessa group, Calico, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA
  • Odessa Oblast', Ukraine
  • Odet river alluvials, Leuhan, Châteauneuf-du-Faou, Finistère, Brittany, France
  • Odet river alluvials, Tréflez, Trégourez, Coray, Finistère, Brittany, France
  • Odgers Mine, Crystal Falls, Menominee iron range, Iron Co., Michigan, USA
  • O. D. Gray Property, Union Co., Mississippi, USA
  • O. D. Gray Prospect, Union Co., Mississippi, USA
  • O. D. Grey Prospect, Pontotoc Co., Mississippi, USA
  • Odienné department, Denguélé region, Ivory Coast (Côte d'Ivoire)
  • Odie Prospect, Delta River District, Southeast Fairbanks Borough, Alaska, USA
  • Odikhincha massif, Maimecha and Kotui Rivers Basin, Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russia
  • Odin Mine, Castleton, Derbyshire, England, UK
  • Odin Mine, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Odin Mine (Odin Drift Mine), Nevada City, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Odin Mine, Summitville District (Summit District), Rio Grande Co., Colorado, USA
  • Odivelas, Ferreira do Alentejo, Beja District, Portugal
  • Odle claims, Mohave Co., Arizona, USA
  • Odoara, Kwara State, Nigeria
  • O'Doherty Mine, Globe-Miami District, Gila Co., Arizona, USA
  • Odom and Cheatham Lands No. 1 Prospect, Lewis Co., Tennessee, USA
  • Odom and Cheatham Lands No. 2 Occurrence, Lewis Co., Tennessee, USA
  • Odom Bank Occurrence, Lewis Co., Tennessee, USA
  • Odom's Mill, Talladega Co., Alabama, USA
  • O'Donnel and Mc Maniman's Quarry, Newton, Sussex Co., New Jersey, USA
  • O'Donnell Creek, Stocking Meadows, Shoshone Co., Idaho, USA
  • O'Donnell I deposit, Anglesea Township, Addington Co., Ontario, Canada
  • O'Donnell II deposit, Anglesea Township, Addington Co., Ontario, Canada
  • O'Donnell III deposit, Anglesea Township, Addington Co., Ontario, Canada
  • O'Donnell Mine, Tuolumne Co., California, USA
  • O'Donnell Opal Occurrence, Avon District (Mica Mountain District), Latah Co., Idaho, USA
  • O'Donnell Placer Mine, Hawkinsville, Klamath Mts, Siskiyou Co., California, USA
  • O'Donnells deposit, Torrington district, Gough Co., New South Wales, Australia
  • O'Donnells prospect, Torrington district, Gough Co., New South Wales, Australia
  • O'Donnel River, Atlin Mining Division, British Columbia, Canada
  • O'Donohue Castle Mine (O'Donoghue Castle Mine), Wooltana homestead area, North Flinders Ranges, Flinders Ranges, South Australia, Australia
  • O'Donovan Rosa Shaft, Leadville District, Lake Co., Colorado, USA
  • Odorheiu Secuiesc (Székelyudvarhely; Oderhellen), Harghita Co., Romania
  • ODP mound, Middle Valley, Juan de Fuca Ridge complex, East Pacific Rise, Pacific Ocean
  • Odra Mine (František Mine), Ostrava, Ostrava-Karviná Coal Area, Moravia-Silesia Region, Moravia (Mähren; Maehren), Czech Republic
  • Odry, Moravia-Silesia Region, Moravia (Mähren; Maehren), Czech Republic
  • Ödsbach Mine, Ödsbach, Oberkirch, Black Forest, Baden-Württemberg, Germany
  • Ödsbach, Oberkirch, Black Forest, Baden-Württemberg, Germany
  • O. D. Warren Prospect, Pike Co., Alabama, USA
  • O'Dwyers Mine, Rockhole area, South Alligator Valley Mineral Field, Northern Territory, Australia
  • Odzhuk pegmatite, Gissar Range, Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad), Tajikistan
  • Oederan, Freiberg District, Erzgebirge, Saxony, Germany
  • Oe-gun, Tokushima prefecture, Shikoku Island, Japan
  • Oegwi-myon, Kanggye-gun, North Pyongan Province, North Korea
  • Oehl Placer Claim, Riverside Co., California, USA
  • Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany
  • Oeiras, Lisboa District, Portugal
  • Oelkers Quarry, Wabasha Co., Minnesota, USA
  • Oelrichs, Fall River Co., South Dakota, USA
  • Oelsnitz, Vogtland, Saxony, Germany
  • Oe mine, Shimoda, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Oen, Øygarden, Hordaland, Norway
  • Oeschinen lake area, Kandersteg, Kander Valley, Bern, Switzerland
  • Oester Occurrence, Columbia Co., Oregon, USA
  • Oest Mine (Peter Oest Claim), Placer Co., California, USA
  • Oest mine, Silver City District, Lyon Co., Nevada, USA
  • Oetani mine (Ouetani mine), Kita-Kuwata-gun, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • Oeto Placer Mine, Nevada Co., California, USA
  • Oeyama Mine, Yosa-mura, Yoza-gun, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • O'Fallon Mine, Cerbat, Cerbat District, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Ofenbach, Lanzenkirchen, Industrieviertel, Lower Austria, Austria
  • Ofenhorn, Albrunhorn - Turbhorn area, Binn Valley, Wallis (Valais), Switzerland
  • Ofer Mine (Ophir Mine), Stateline District (Hamlin Valley), Iron Co., Utah, USA
  • Offenbach, Bischoffen, Dillenburg District, Hesse, Germany
  • Offenbacher Placer, Applegate District, Jackson Co., Oregon, USA
  • Offenbach valley, Hornberg, Black Forest, Baden-Württemberg, Germany
  • Offenburg, Black Forest, Baden-Württemberg, Germany
  • Offerdal, Krokom, Jämtland, Sweden
  • Offield Creek Mine, Port Clarence District, Nome Borough, Alaska, USA
  • Offield Diggins placer, White Cloud Mountain, Klamath Mts, Siskiyou Co., California, USA
  • Offield Mine, Hamburg, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • Offield Mountain, Klamath Mts, Siskiyou Co., California, USA
  • Offin & Reed Placer, El Dorado Co., California, USA
  • Offnerhütte, Ladinger Spitze - Speikkogel area, Saualpe, Carinthia, Austria
  • Offset Mine, Lake Los Angeles, Los Angeles Co., California, USA
  • Offshore Submarine Banks, San Diego Co., California, USA
  • Offutt Quarry, Baltimore Co., Maryland, USA
  • Oficarsa Quarry (Cerro de las Culebras), Carchelejo, Jaén, Andalusia, Spain
  • Oficina Alemania, Santa Catalina, Antofagasta Province, Antofagasta Region, Chile
  • Oficina Angela, Iquique Province, Tarapacá Region, Chile
  • Oficina Catalina, Taltal, Antofagasta Province, Antofagasta Region, Chile
  • Oficina Chacabuco, Antofagasta Region, Chile
  • Oficina Lautaro, Antofagasta Region, Chile
  • Oficina Maria Elena, Tocopilla Province, Antofagasta Region, Chile
  • Oficina Progreso, Iquique Province, Tarapacá Region, Chile
  • Oficina Santa Luisa, Canchas, Antofagasta Province, Antofagasta Region, Chile
  • Oficina Victoria, Iquique Province, Tarapacá Region, Chile
  • Oficina Virginia, Iquique Province, Tarapacá Region, Chile
  • Ofiki, Oyo State, Nigeria
  • O. F. Lode Occurrence, Elk Mountain District, Gunnison Co., Colorado, USA
  • O. F. Luttrell Prospect, Talladega Co., Alabama, USA
  • O. F. Martin Mine, Hog Heaven District (Flathead District), Flathead Co., Montana, USA
  • O. F. Patterson Mine, Alexander Co., North Carolina, USA
  • Oftedalsbakken, Lyngdal, Vest-Agder, Norway
  • Often Mine, Hassayampa District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Ofuji adit, Takanomine mine, Ibaraki Prefecture, Kanto Region, Honshu Island, Japan
  • Ofuku mine (Yamato mine), Mine city, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan
  • Ofunato City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Of What Nos. 1 & 2 Mine, Meadow Lake District, Nevada Co., California, USA
  • Ogachi, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Ogaguchi mine, Otsuchi, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Ogaki mine, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Ogalla, Gold Hill District, Boulder Co., Colorado, USA
  • Ogalla, Keith Co., Nebraska, USA
  • Ogama-Rockland Au deposit, Rice Lake Gold District, Manitoba, Canada
  • Ogasawara Islands, Tokyo Prefecture, Japan
  • Ogata mine, Hoshino district, Fukuoka Prefecture, Kyushu Region, Japan
  • Ogawa mine, Mine City, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan
  • Ogbomosho (Ogbomoso), Oyo State, Nigeria
  • Ogburn Pit (Fort Hill Construction Inc.), Brunswick Co., Virginia, USA
  • O & G Burrville Quarry (O & G No. 4 Quarry), Burrville, Torrington, Litchfield Co., Connecticut, USA
  • Ogden Bay Brine, Great Salt Lake Area, Weber Co., Utah, USA
  • Ogden Boilermakers Claim, Willard District, Wasatch Mts, Box Elder Co., Utah, USA
  • Ogden Branch Stone, Knott Co., Kentucky, USA
  • Ogden Canyon, Weber Co., Utah, USA
  • Ogden Mine (Horseshoe Mine; Lehigh Mine; Lehigh Valley Mine), Sparta Township, Sussex Co., New Jersey, USA
  • Ogden Mine, Ishpeming, Marquette iron range, Marquette Co., Michigan, USA
  • Ogden Mine, Moradillas (Moralíllo), Mun. de La Colorada, Sonora, Mexico
  • Ogden mine, Reese River District, Lander Co., Nevada, USA
  • Ogden Mountain, Liard Division, British Columbia, Canada
  • Ogden Mountain Occurrence, Powell Co., Montana, USA
  • Ogden Mountain Placer (Hopkins Placer), Big Blackfoot District (Helmville District), Powell Co., Montana, USA
  • Ogden Prospect, Cotopaxi District, Fremont Co., Colorado, USA
  • Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
  • Ogden, Weber Co., Utah, USA
  • Ogeechee Brick plant, Union Point, Greene Co., Georgia, USA
  • Ogee mine, Potosi District, Humboldt Co., Nevada, USA
  • Ogemaw Co., Michigan, USA
  • Ogie Mountain Mine, Santiam District (Elkhorn District), Clackamas Co., Oregon, USA
  • Ogilby, Cargo Muchacho District (Hedges District; Ogilby District), Cargo Muchacho Mts, Imperial Co., California, USA
  • Ogilby Group of Mines, Obregon, Cargo Muchacho District (Hedges District; Ogilby District), Cargo Muchacho Mts, Imperial Co., California, USA
  • Ogilvie, Cripple Creek District, Teller Co., Colorado, USA
  • Ogima Mine, Mass Consolidated Mine, Mass City, Ontonagon Co., Michigan, USA
  • Ogimi-son, Yanbaru region, Okinawa Island, Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Ogi, Sado Island, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Ogiura, Chichi Island (Chichijima), Chichijima Group, Ogasawara Islands, Tokyo Prefecture, Japan
  • Ogiyama mine, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Ogle Co., Illinois, USA
  • Ogle Mine, El Dorado Co., California, USA
  • Ogle occurrence, Duncan Springs, Coastal Range, Mendocino Co., California, USA
  • Ogle Property, Whitehall District (Cardwell District), Jefferson Co., Montana, USA
  • Ogle Quarry, Tillamook Co., Oregon, USA
  • Ogle Stone Quarry, Franklin Co., Indiana, USA
  • Oglethorpe Co., Georgia, USA
  • Oglethorpe Quarry Dirienzo, Oglethorpe Co., Georgia, USA
  • Oglethorpe Quarry, Oglethorpe Co., Georgia, USA
  • Oglethorpe Quarry Star Granite, Oglethorpe Co., Georgia, USA
  • Ogliastra Province, Sardinia, Italy
  • Ognevka Ta Deposit, Kalba Range, Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan
  • Ogo-dour Cove, Mullion, Lizard Peninsula, Cornwall, England, UK
  • Ogofau Mine (Roman Deep Mine; Dolaucothi Mine; Cothy Mine), Pumpsaint, Carmarthenshire (Dyfed), Wales, UK
  • Ogof Owain Glyndwr, Moel Hebog, Beddgelert, Gwynedd (Caernarvonshire), Wales, UK
  • Ogoma No. 3 Placer, Silver Butte District (Vermillion District; Cabinet District), Sanders Co., Montana, USA
  • Ogonja Mine (Onganja Mine), Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia
  • Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia
  • Ogooué-Ivindo Province, Gabon
  • Ogooué-Lolo Province, Gabon
  • Ogooué-Maritime Province, Gabon
  • Ogose mine (Neoi mine), Iruma-gun, Saitama Prefecture, Kanto Region, Honshu Island, Japan
  • Ogoya mine, Komatsu City, Ishikawa Prefecture, Chubu Region, Honshu Island, Japan
  • Ogre-Bogle group of claims (Tedford's group), Victorio District, Luna Co., New Mexico, USA
  • Ogrulca prospect, Murat Dagi, Kütahya Province, Aegean Region, Turkey
  • O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Southbury, New Haven Co., Connecticut, USA
  • Ogunimachi, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Oguni mine, Yamagata, Kuji City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Ogura-Yamada, Nishikata, Tochigi City, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • O & G Woodbury Quarry (Orenaug Quarry; O & G No. 1 Quarry), Woodbury, Litchfield Co., Connecticut, USA
  • Ohakune, North Island, New Zealand
  • Ohakuri, Taupo, Tongariro, North Island, New Zealand
  • O'Hallorans Hill Prospect, Condobolin, Cunningham Co., New South Wales, Australia
  • Ohanapecosh Basalts, Lewis Co., Washington, USA
  • Ohanapecosh Basalts, Pierce Co., Washington, USA
  • Ohangwena Region, Namibia
  • O'Hara Mine, Calaveras Co., California, USA
  • O'Hara Mine (Franklin Mine), Sonora, Sonora District, Tuolumne Co., California, USA
  • O'Hara Prospect, Nizina District, Valdez-Cordova Borough, Alaska, USA
  • O'Hara Rock Source, Idaho Co., Idaho, USA
  • O'Hara shaft, Trigg Co., Kentucky, USA
  • O'Harco Ranch, Navajo Co., Arizona, USA
  • O'Harco Robinson prospect, Navajo Co., Arizona, USA
  • Ohari mine (Obari mine), Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohari, Miyagi Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohatchee, Calhoun Co., Alabama, USA
  • Ohatchee Quarry, Calhoun Co., Alabama, USA
  • O'Haver claim, Cripple Creek, Cripple Creek District, Teller Co., Colorado, USA
  • O. H. Bassett Mine, Vaughn District (Rimini District), Lewis and Clark Co., Montana, USA
  • Ohbuki mine (Ofukiyama; Obukidani; Ohbukitani), Hinokage-cho, Miyazaki prefecture, Kyushu Region, Japan
  • Oh Cash Prospect, Warm Springs District (Warm Springs Creek District), Blaine Co., Idaho, USA
  • Ohgibira mine (Ogibira mine), Niimi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Ohgidani deposit (Ogidani; Ougidani), Tobe, Ehime prefecture, Shikoku Island, Japan
  • Ohgiri adit (Ogiri adit), Shimotani deposits, Yanahara mine (Yanahara mining district), Misaki-cho, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Ohgushi mine, Ohgushi (Ogushi), Nishisonogi-gun, Nagasaki Prefecture, Kyushu Region, Japan
  • Ohgushi (Ogushi), Nishisonogi-gun, Nagasaki Prefecture, Kyushu Region, Japan
  • Ohgusoyama, Hamada City, Shimane Prefecture, Chugoku region, Honshu Island, Japan
  • Oh Henry No. 1, Castle Peak District (Uninta Basin), Duchesne Co., Utah, USA
  • Ohinata mine (Ouhinata mine), Minami-Saku-gun, Nagano Prefecture, Chubu Region, Honshu Island, Japan
  • Ohio and Buckeye Mine, Elk Creek District, Granite Co., Montana, USA
  • Ohio and Cologne Placer, Nevada Co., California, USA
  • Ohio and Colorado Quarry, Chaffee Co., Colorado, USA
  • Ohio and Indiana Stone Co. quarry, Greencastle, Putnam Co., Indiana, USA
  • Ohio and Morningstar, Monarch District, Chaffee Co., Colorado, USA
  • Ohio and Speculator Occurrence, Ontario District (Elliston District), Powell Co., Montana, USA
  • Ohio Belle, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Ohio Brush Creek, Belfast, Highland Co., Ohio, USA
  • Ohio Brush Creek, Folsum, Highland Co., Ohio, USA
  • Ohio Brush Creek, Jacksonville, Adams Co., Ohio, USA
  • Ohio Buckminster (Uptograph), Calaveras Co., California, USA
  • Ohio Caverns, West Liberty, Champaign Co., Ohio, USA
  • Ohio City, Gold Brick District, Gunnison Co., Colorado, USA
  • Ohio Claim, Alahambra District (Golconda District), Jefferson Co., Montana, USA
  • Ohio claim, Almanor, Almanor District, Plumas Co., California, USA
  • Ohio Claim, Colorado Group, Covada, Covada District (Enterprise District), Colville Indian Reservation, Ferry Co., Washington, USA
  • Ohio Claim, Oroville District, Okanogan Co., Washington, USA
  • Ohio Claims, Riverside Co., California, USA
  • Ohio Claim, Stehekin District, Chelan Co., Washington, USA
  • Ohio Co., Kentucky, USA
  • Ohio Copper Company (Erie; Columbia), Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Ohio Creek Mine No. 2, Gunnison Co., Colorado, USA
  • Ohio Creek Mine (Ohio Creek No. 1 Mine), Gunnison Co., Colorado, USA
  • Ohio Creek (Ohio Stream), Tararu, Thames-Coromandel, Waikato, North Island, New Zealand
  • Ohio Creek prospect, Tararu, Thames-Coromandel, Waikato, North Island, New Zealand
  • Ohio Diggings Mine (Mackey Ranch Mine), Jamestown, Jamestown District, Mother Lode belt, Tuolumne Co., California, USA
  • Ohio District, Bullion Canyon, Tushar Mts, Piute Co., Utah, USA
  • Ohio; Early Bird; Mayflower; Connors and Stevens Mine, Fairbanks District, Fairbanks North Star Borough, Alaska, USA
  • Ohio Extension claim, Almanor, Almanor District, Plumas Co., California, USA
  • Ohio Fraction Quartz Lode Claim, South Boulder Creek District (Princeton District), Granite Co., Montana, USA
  • Ohio Giant Mine, Cienega District, Buckskin Mts, La Paz Co., Arizona, USA
  • Ohio - Indiana, Durango Area, La Plata Co., Colorado, USA
  • Ohio & Isle Royale Mine, Isle Royale National Park, Lake Superior, Keweenaw Co., Michigan, USA
  • Ohio - Keating Mine, Radersburg District (Cedar Plains District; Lone Mountain District), Broadwater Co., Montana, USA
  • Ohio, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Ohio & Marsaba Mines, Fresno Co., California, USA
  • Ohio Mine, "Amphitheater" glacial cirque, Ouray, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA
  • Ohio Mine (1), Clio, Plumas Co., California, USA
  • Ohio Mine (2), Argentine Rock, Genesee Valley District (Genesee District), Plumas Copper Belt, Plumas Co., California, USA
  • Ohio Mine (3), Argentine Rock, Genesee Valley District (Genesee District), Plumas Copper Belt, Plumas Co., California, USA
  • Ohio Mine (A. E. Linderman Property), Mineral Hill District, Blaine Co., Idaho, USA
  • Ohio Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
  • Ohio Mine, Calaveras Co., California, USA
  • Ohio Mine, Deadman Canyon-California Gulch-Whitewater Canyon Area, Burro Mountains District, Grant Co., New Mexico, USA
  • Ohio Mine (Eagle), El Dorado Co., California, USA
  • Ohio mine, Gold Point District, Esmeralda Co., Nevada, USA
  • Ohio Mine, Jims Camp, Klamath Mts, Siskiyou Co., California, USA
  • Ohio Mine, Mariposa Co., California, USA
  • Ohio Mine (Ohio Lode), Tidal Wave District, Madison Co., Montana, USA
  • Ohio Mine, Park District (Whitecross District; Burrows Park District; Adams District), Hinsdale Co., Colorado, USA
  • Ohio mine, Pinos Altos District, Grant Co., New Mexico, USA
  • Ohio Mine, Rea Valley, Warner Creek-Halls Mountain District, Marion Co., Arkansas, USA
  • Ohio Mines (Imperial Mine; Webster Mine), Imperial Heights, Baraga Co., Michigan, USA
  • Ohio Mine, Soledad Canyon, Acton, Acton District, San Gabriel Mts, Los Angeles Co., California, USA
  • Ohio Mine (U S Steel Corp), Mesabi Range, St. Louis Co., Minnesota, USA
  • Ohio Placer, Calaveras Co., California, USA
  • Ohio Prospect, Cracker Creek District (Sumpter District; Bourne District; McCully District), Baker Co., Oregon, USA
  • Ohio Quartz Lode Claim, South Boulder Creek District (Princeton District), Granite Co., Montana, USA
  • Ohio Quartz, Silver Star District, Madison Co., Montana, USA
  • Ohio River alluvials, Florence, Switzerland Co., Indiana, USA
  • Ohio River alluvials, Neville Island, Neville Township, Allegheny Co., Pennsylvania, USA
  • Ohio River alluvials, New Martinsville, Wetzel Co., West Virginia, USA
  • Ohio River and Johnnie F. Placer, Mariposa Co., California, USA
  • Ohio River, Gallia Co., Ohio, USA
  • Ohio shaft, Tonopah District, Nye Co., Nevada, USA
  • Ohio Street, Marquette, Marquette Co., Michigan, USA
  • Ohio Sulphur Mining Company Mine (Proffit Mine; Old Pyrite mine), Proffit, Albemarle Co., Virginia, USA
  • Ohio Trap Rock Mine, Norwich, Ontonagon Co., Michigan, USA
  • Ohio Tungsten Mine, Gold Hill District, Boulder Co., Colorado, USA
  • Ohio Tunnel Company Placer, El Dorado Co., California, USA
  • Ohio Tunnel, Fulford District, Eagle Co., Colorado, USA
  • Ohio, USA
  • Ohio (Virginia; Arthur), Lower San Miguel District, San Miguel Co., Colorado, USA
  • Ohio, West Shasta Copper - Zinc District, Shasta Co., California, USA
  • Ohio, Whitehall District (Cardwell District), Jefferson Co., Montana, USA
  • Ohira, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohira Imazaki mine (Ohhira-Imazaki mine), Yoshinaga, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Ohiri mine, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohisawa mine (Oizawa mine), Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Ohito, Shizuoka prefecture, Chubu region, Honshu Island, Japan
  • Ohkakiyama mine, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Ohkawame mine (Okawame mine), Kuji City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohkueyama (Okueyama), Miyazaki prefecture, Kyushu Region, Japan
  • Ohkuki mine (Okuki deposit), Ehime prefecture, Shikoku Island, Japan
  • Ohlbach Mine, Klein-Umstadt, Groß-Umstadt, Odenwald, Hesse, Germany
  • Ohle gravel pit, Groß Pampau, Schwarzenbek, Schleswig-Holstein, Germany
  • Ohlerking mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Ohligerzug Mine (Ohliger Zug Mine), Biersdorf, Herdorf, Siegerland, Rhineland-Palatinate, Germany
  • Ohline, Gold Hill District, Boulder Co., Colorado, USA
  • Ohman Mine (Nare Lease), Ralston Buttes District, Jefferson Co., Colorado, USA
  • Ohman prospect, Guy Hill pegmatite area, Jefferson Co., Colorado, USA
  • Ohmidani mine (Omidani mine), Shisou City, Hyogo Prefecture, Kinki Region, Honshu Island, Japan
  • Ohmi, Itoigawa City, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Ohmine mine (Omine mine), Tono City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohmi river (Ohmi-gawa), Ohmi, Itoigawa City, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Ohmori mine, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Ohnagusa mine (Onagusa), Teragohchi, Katsuyama, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Ohnari mine, Mineyama-cho, Naka-gun, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • Ohn-bin-ywe-htwet Mine (Coconut Tree Mine), Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Burma (Myanmar)
  • Ohngaing (Ohn Gaing; Ohn Kai), Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Burma (Myanmar)
  • Ohnmacht Cave (Ohmach Cave), Blue Marsh Lake, Bern Township, Berks Co., Pennsylvania, USA
  • Ohori mine (Ou'hori mine; Obori mine), Mogami, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Öhrli, Säntis Massif, Appenzell-Innerrhoden, Switzerland
  • Ohro (Ōro; Ouro; Ooro), Naka-gun, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • Oh Saung Taung (Oak-Saung Taung; Oakssaung Hill; Phayar Taung), Le-O (Le U), Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Burma (Myanmar)
  • Ohsawaguchi, Daigo-machi, Ibaraki Prefecture, Kanto Region, Honshu Island, Japan
  • Ohsawa mine, Okutama-cho, Nishi-Tama-gun, Tokyo Prefecture, Kanto Region, Honshu Island, Japan
  • Ohtaki mine (Otaki), Nagano prefecture, Chubu region, Honshu Island, Japan
  • Ohtaki-mura, Chichibu-gun, Saitama Prefecture, Kanto Region, Honshu Island, Japan
  • Ohto mine, Tanabe City, Wakayama Prefecture, Kinki Region, Honshu Island, Japan
  • Ohtonen Quarry, Greenwood, Oxford Co., Maine, USA
  • OH Vein, Commodore Mine, Amethyst Vein, Creede District, Mineral Co., Colorado, USA
  • Ohya mine (Oya mine; Ohya quarry), Utsunomiya, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Oi-gun, Fukui Prefecture, Chubu Region, Honshu Island, Japan
  • Oil City area, Fresno Co., California, USA
  • Oil Creek Occurrence, Alaska Peninsula District, Kodiak Island Borough, Alaska, USA
  • Oil Creek Occurrence, Weston Co., Wyoming, USA
  • Oil-Dri - Fletcher-McGinnis Mine, Gadsden Co., Florida, USA
  • Oil-Dri Production Co. mine (Malone Hutchinson Stewart Mine), Ripley, Tippah Co., Mississippi, USA
  • Oil Dry Production Company, Lake Co., Oregon, USA
  • Oilfield Marble Prospect, Talladega Co., Alabama, USA
  • Oil Mountain No. 1 Occurrence, Fremont Co., Wyoming, USA
  • Oil Seep No. 8, Shootaring, Henry Mts, Garfield Co., Utah, USA
  • Oio Region, Guinea-Bissau
  • Oippe mine, Higashidori, Shimokita peninsula, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Oise, Picardie, France
  • Oisgill Bay, Dunvegan, Duirinish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK
  • Oishida mine, Oishida, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Oishida, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Oishi mine, Yuda-machi, Waga-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Oistra, Lobniggraben, Bad Eisenkappel (Bad Eisenkappl), Karawanken, Carinthia, Austria
  • Oita prefecture, Kyushu Region, Japan
  • Oiwa orebody, Hamayokokawa mine (Hamayokogawa mine), Kami-Ina-gun, Nagano Prefecture, Chubu Region, Honshu Island, Japan
  • O'Jaco claim, Cameron District, Coconino Co., Arizona, USA
  • Ojai Gypsum Mine, Ojai, San Emigdio Mts, Ventura Co., California, USA
  • Ojaipee Mine, Doley Lake, Conger Township, Parry Sound District, Ontario, Canada
  • Ojai, San Emigdio Mts, Ventura Co., California, USA
  • Ojancos Mine, Ojancos Viejo district, Copiapó Province, Atacama Region, Chile
  • Ojancos Nuevo District, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
  • Ojancos Viejo district, Copiapó Province, Atacama Region, Chile
  • Öja Quarry, Öja, Ystad, Skåne, Sweden
  • O. J. Cleveland Farm Placer, Quigley Area, Power Co., Idaho, USA
  • Ojén Iherzolite massif, Ojén, Málaga, Andalusia, Spain
  • Ojén, Málaga, Andalusia, Spain
  • Ojhar quarry complex, Nasik District, Maharashtra, India
  • Ojibwa, Sawyer Co., Wisconsin, USA
  • Ojibway, Keweenaw Co., Michigan, USA
  • Ojibway Mine, Ojibway, Keweenaw Co., Michigan, USA
  • Ojibway Mine, Windsor, Essex Co., Ontario, Canada
  • Ojiri Mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Ojito Mine, Tayoltita, San Dimas District, Mun. de San Dimas, Durango, Mexico
  • Ojo Alamo, San Juan Co., New Mexico, USA
  • Ojo Caliente, Mun. de Ojo Caliente, Zacatecas, Mexico
  • Ojo Caliente No. 1 District, Rio Arriba Co., New Mexico, USA
  • Ojo Caliente No. 2 District, Socorro Co., New Mexico, USA
  • Ojo Caliente Spring, Lower Geyser Basin, Yellowstone National Park, Park Co., Wyoming, USA
  • Ojo de Agua Mine, Guale, Mun. de Talpa de Allende, Jalisco, Mexico
  • Ojo de Agua vein, Santiago del Estero, Argentina
  • Ojo de Agua Veta Sur, Santiago del Estero, Argentina
  • Ojo de San Martin, Estacion Ojo Laguna, Mun. de Ahumada, Chihuahua, Mexico
  • Ojo de Tao, Valle de San Miguel, McKinley Co., New Mexico, USA
  • Ojojona, Tegucigalpa, Distrito Central, Francisco Morazán Department, Honduras
  • Ojo Laguna, Estacion Ojo Laguna, Mun. de Ahumada, Chihuahua, Mexico
  • O. Jones Mine, Fillmore Co., Minnesota, USA
  • Ojos Bonitos prospect, Yavapai Co., Arizona, USA
  • Ojos Espanoles Mine, General Lázaro Cárdenas (Lázaro Cárdenas; Colonia Lázaro Cárdenas), Mun. de Julimes, Chihuahua, Mexico
  • Ojos Negros iron mines, Ojos Negros, Teruel, Aragón, Spain
  • Ojo Vecino, Santa Elena, Linares-La Carolina District, Jaén, Andalusia, Spain
  • Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico
  • O. J. Wolcott Placer (Upper Wolcott; Lower Wolcott), Nevada Co., California, USA
  • Oka complex, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada
  • Oka complex, Saint-Joseph-du-Lac, Deux-Montagnes RCM, Laurentides, Québec, Canada
  • Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada
  • Okahandja District, Otjozondjupa Region, Namibia
  • Okaharau Range, Pakotai, North Island, New Zealand
  • Okahua, Otjiwarongo District, Otjozondjupa Region, Namibia
  • Okaihau quarry, Okaihau, Far North, Northland, North Island, New Zealand
  • Okains Bay, Banks Peninsula, Canterbury, South Island, New Zealand
  • Okakarara District, Otjozondjupa Region, Namibia
  • Okaloosa County Commissoners - South Baker Mine, Okaloosa Co., Florida, USA
  • Okami mine, Kunohe, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Okamuvia Farm 144, Windhoek District, Khomas Region, Namibia
  • OK and North Extension, Tuolumne Co., California, USA
  • O'Kane mine, Reese River District, Lander Co., Nevada, USA
  • Okanjande, Otjiwarongo District, Otjozondjupa Region, Namibia
  • Okan Mine, Gateway District, Mesa Co., Colorado, USA
  • Okano Department, Woleu-Ntem Province, Gabon
  • Okanogan Claim, Okanogan, Okanogan Co., Washington, USA
  • Okanogan Co., Washington, USA
  • Okanogan Free Gold Mine (Owasco Mine; Allison Mine), Oroville, Oroville District, Okanogan Co., Washington, USA
  • Oka Rare Metals mine, Oka complex, Saint-Joseph-du-Lac, Deux-Montagnes RCM, Laurentides, Québec, Canada
  • Okarundu, Okahandja District, Otjozondjupa Region, Namibia
  • Okataina, Rotorua, Bay of Plenty, North Island, New Zealand
  • Okatjimukuju Farm 55 (Friedrichsfelde Farm), Karibib District, Erongo Region, Namibia
  • Okatumba, Kaokoveld Plateau, Kunene Region, Namibia
  • Okavango Region, Namibia
  • Okaw Mine, San Bernardino Co., California, USA
  • Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Okay Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Okbang Mine, Punch'on, Gyeongsangbuk-do (Kyongsang-bukto; Gyeongsangbugdo), South Korea
  • O. K. Brickyard, Washington Co., Oregon, USA
  • OK Cu-Mo deposit, Powell River, Nanaimo Mining Division, British Columbia, Canada
  • Okedale, Flathead Co., Montana, USA
  • Okeechobee Co., Florida, USA
  • Okeechobee Pit, Palm Beach Co., Florida, USA
  • O'Keefe and Co prospect, Mount Rodd, Burnett Co., New South Wales, Australia
  • O'Keefe Occurrence, Pueblo District (Denio District), Harney Co., Oregon, USA
  • Okehampton area (Northern Dartmoor), Devon, England, UK
  • Okehampton Consols, Okehampton area (Northern Dartmoor), Devon, England, UK
  • O'Keith property, Randolph Co., Alabama, USA
  • Oke Khasa Mine, Oropeza Province, Chuquisaca Department, Bolivia
  • OK (Elder Occurrence), Lower San Miguel District, San Miguel Co., Colorado, USA
  • O'Kelly Prospect (Weissman Lease), Tulare Co., California, USA
  • Okel Tor Mine, Calstock, Calstock Area, Callington District, Cornwall, England, UK
  • Okene Mine, Okene, Kogi State, Nigeria
  • Okere, Kwara State, Nigeria
  • Oker Mine, Lewis and Clark Co., Montana, USA
  • Oker valley, Bad Harzburg, Harz, Lower Saxony, Germany
  • Oketo-cho, Tokoro-gun, Abashiri Province, Hokkaido, Japan
  • O.K. Extension property, Union Pass District (Katherine District), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Okey Davis Mine, Fairplay District, Nye Co., Nevada, USA
  • Okfuskee Co., Oklahoma, USA
  • O.K. & Gold Bar Mine, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Okhmyl'k Mt, Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
  • OK, Idaho Co., Idaho, USA
  • Okidaito-jima (Oki Daitou; Rasa-tou; Rasa island), Daito Islands, Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Okiep Copper District, Namaqualand, Northern Cape Province, South Africa
  • Okiep Mine (O'Okiep Mine), Okiep Copper District, Namaqualand, Northern Cape Province, South Africa
  • Oki Islands, Shimane Prefecture, Chugoku Region, Japan
  • Okinawa Island, Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Okinawa Trough, Senkaku Islands (Diaoyudao Islands; Diaoyutai Islands), Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Okinazawa Mine, Yuda-machi, Waga-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Okita mine, Daitoh, Higashiiwai-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Okium & Okium North Extension Mine (Oakum), Calaveras Co., California, USA
  • Okiura, Kuroishi City, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Okkampitiya, Moneragala District, Uva Province, Sri Lanka
  • Okku-gun, Jeollabuk-do (Cholla-pukto; Jeonrabugdo), South Korea
  • Oklahoma, Boulder Co., Colorado, USA
  • Oklahoma Mine (Oklahoma group; Troxel group; Troxel Mining property; Alto group; Vaughn property; Greenhaw group), Mineral Mountain area, Mineral Mountain District, Pinal Co., Arizona, USA
  • Oklahoma, USA
  • O K, Leadville District, Lake Co., Colorado, USA
  • Oklobondo Mine (Okélobondo Mine), Franceville, Haut-Ogooué Province, Gabon
  • OK Lode Gold & Silver, Hill City District, Pennington Co., South Dakota, USA
  • Oklo Mine, Franceville, Haut-Ogooué Province, Gabon
  • OK Mine, Central City District, Gilpin Co., Colorado, USA
  • O. K. Mine (Elkoro Mines), Jarbidge District, Elko Co., Nevada, USA
  • OK Mine, Erickson District (Black Crook District), Simpson Mts, Tooele Co., Utah, USA
  • OK mine, Marshall Canyon, Reese River District, Lander Co., Nevada, USA
  • O.K. Mine, Metaline, Metaline District, Pend Oreille Co., Washington, USA
  • OK Mine (Milford Pit), Beaver Lake District, Beaver Lake Mts, Beaver Co., Utah, USA
  • O.K. Mine (OK Copper Mine; OK Mine), Oroville, Oroville District, Okanogan Co., Washington, USA
  • O.K. Mine (O.K. group; O.K. claims; OK Mine), Gold Basin District, White Hills, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • O.K. Mine (OK Mine), Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • O.K. Mine (OK Mine), Johnson Camp, Cochise District, Little Dragoon Mts, Cochise Co., Arizona, USA
  • O.K. Mine (OK Mine), Milford, San Francisco District (Frisco District), San Francisco Mts, Beaver Co., Utah, USA
  • O.K. Mine, San Gabriel Canyon, San Gabriel Mts, Los Angeles Co., California, USA
  • O.K. Mine (Storm King Consolidated), New Dale, Dale District, Pinto Mts, San Bernardino Co., California, USA
  • Ökna, Vetlanda, Småland, Sweden
  • O K No. 2 Lode Occurrence, Custer District, Custer Co., South Dakota, USA
  • O K No. 4 Lode Occurrence, Custer District, Custer Co., South Dakota, USA
  • Okok River Occurrence, Bering Sea District, Nome Borough, Alaska, USA
  • Okolona Quarry, Jefferson Co., Kentucky, USA
  • O. K. Olson Occurrence, Gilmore District (Texas District), Lemhi Co., Idaho, USA
  • O. K. Olson Prospect, Troy District, Latah Co., Idaho, USA
  • Okongava-Ost Farm 72, Karibib District, Erongo Region, Namibia
  • Okoppe mine, Shimokita peninsula, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Okoreka Mine, Silver Lake District, Deer Lodge Co., Montana, USA
  • Ökör Hill, Hollóháza, Zemplén Mts. (Tokaj Mts.), Borsod-Abaúj-Zemplén Co., Hungary
  • Okorogawa mine, Nikko City, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • Okoro Mines Inc., Callahan, Callahan District (Scott River District), Klamath Mts, Siskiyou Co., California, USA
  • Okorusu Mine (Okarusu Mine), Otjiwarongo District, Otjozondjupa Region, Namibia
  • Okoška Gora, Oplotnica (Oplotnitz), Slovenia
  • Okpilak River Occurrence, Canning District, North Slope Borough, Alaska, USA
  • O K Placer Mine, Shasta Co., California, USA
  • Okpo-myon, Talsong-gun, Gyeongsangbuk-do (Kyongsang-bukto; Gyeongsangbugdo), South Korea
  • O. K. Prospect, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • O. K. prospect, Hilltop District, Lander Co., Nevada, USA
  • O.K. Prospect, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
  • OK prospect (O.K. Mine; Keough; OK claim), Kern Co., California, USA
  • O. K. Prospect, Riggins Area, Idaho Co., Idaho, USA
  • OK Prospect, San Bernardino Co., California, USA
  • O. K. Quarry (Oliver King Sand and Lime Company), Knox Co., Tennessee, USA
  • OK Ridge Limestone Deposit, Buffalo Co., Wisconsin, USA
  • Okrouhlá Radouň, Jindřichův Hradec okres, South Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Okružná, Prešov Co., Prešov Region, Slovakia
  • Oksanga jade mine, Chuncheon City, Gangwon-do (Kangwon-do; Gang'weondo), South Korea
  • Oksenøen, Råde, Østfold, Norway
  • Oksfjorddalen, Nordreisa, Troms, Norway
  • Øksfjord-Langfjord area, Øksfjord, Loppa, Finnmark, Norway
  • Øksfjord, Loppa, Finnmark, Norway
  • Øksnanuten, Høle, Sandnes, Rogaland, Norway
  • Øksne, Lier, Buskerud, Norway
  • Øksnes, Nordland, Norway
  • Oksøyekollen, Snarum, Modum, Buskerud, Norway
  • Ok Tedi Mine, Mount Fubilan, Star Mts, Western Province (Fly Province), Papua New Guinea
  • Oktibbeha Co., Mississippi, USA
  • Oktibbeha County meteorite, Oktibbeha Co., Mississippi, USA
  • Oktorkoy deposit, Oktorkoy ore district, Issyk-Kul'skaya Oblast, Kyrgyzstan
  • Oktorkoy ore district, Issyk-Kul'skaya Oblast, Kyrgyzstan
  • Oktyabrskaya pegmatite vein, Malkhan pegmatite field (Malchan), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Oktyabrskaya vein, Horní Slavkov uranium ore district, Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Oktyabr'skoe Mo-U Deposit, Strel'tsovskoe Mo-U ore field, Krasnokamensk, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Oktyabr'skoe (Oktyabr'skoye; Oktyabr'sky) Cu-Ni deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia
  • Oktyabr'skoye Hg deposit, Tuva Republic, Eastern-Siberian Region, Russia
  • Oktyabr'skoye U Deposit, Kyzyltyube-Sai, Khodzhent (Leninabad), Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad), Tajikistan
  • Okubo Mine, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
  • Okuchi mine (Oguchi mine), Okuchi city, Kagoshima Prefecture, Kyushu Region, Japan
  • Okumanza Hot Spring, Gunma Prefecture, Kanto Region, Honshu Island, Japan
  • Okumura, Chichi Island (Chichijima), Chichijima Group, Ogasawara Islands, Tokyo Prefecture, Japan
  • Okunigiri, Sumita-cho, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • O. Kunnert Mine Reserve No. 1, Fillmore Co., Minnesota, USA
  • O. Kunnert Mine Reserve No. 2, Fillmore Co., Minnesota, USA
  • Okura deposit, Obira mine, Ono-gun, Oita prefecture, Kyushu Region, Japan
  • Okura mine, Minami-uonuma City, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Okushibetsu Mine, Kamishibetsu-mura, Tsuchikawe-gun, Hokkaido, Japan
  • Okushi mine, Nishisonogi-gun, Nagasaki Prefecture, Kyushu Region, Japan
  • Okushiri ridge, Sea of Japan, Pacific Ocean
  • Okutama-cho, Nishi-Tama-gun, Tokyo Prefecture, Kanto Region, Honshu Island, Japan
  • Okutama mine, Okutama-cho, Nishi-Tama-gun, Tokyo Prefecture, Kanto Region, Honshu Island, Japan
  • Okuyama mine, Shizuoka prefecture, Chubu region, Honshu Island, Japan
  • Okuyugawara, Yugawara, Kanagawa Prefecture, Kanto Region, Honshu Island, Japan
  • Okuzu mine, Tono City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Okzhetpes Ag-Au deposit, Kyzylkum Desert, Uzbekistan
  • Oladdie Mine, Johnburgh, South Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Olaf Seim Mine (Gotland Mine; Broken Boot), Deadwood, Lawrence Co., South Dakota, USA
  • Olafsen Iron Mine, Huffs Church, Hereford Township, Berks Co., Pennsylvania, USA
  • Olagnol vein, Chazelles-Haut (Chazelle), Mercoeur, Haute-Loire, Auvergne, France
  • Olalla District, Douglas Co., Oregon, USA
  • Olalla, Osoyoos Mining Division, British Columbia, Canada
  • Olancha area, Inyo Co., California, USA
  • Olancha Lead No. 1, Lookout City, Lookout District (Modoc District), Argus Mts (Argus Range), Inyo Co., California, USA
  • Olancha, Owens Valley, Inyo Co., California, USA
  • Olancho Department, Honduras
  • Olanesti, Vâlcea Co., Romania
  • Olanga (Oulanka) River, Oulanka plutonic complex, Northern Karelia, Karelia Republic, Northern Region, Russia
  • Ola No. 8 Prospect, Gas Hills District, Fremont Co., Wyoming, USA
  • Olargues, Hérault, Languedoc-Roussillon, France
  • Ola Ridge, Ola, Gem Co., Idaho, USA
  • Olary, Olary Province, South Australia, Australia
  • Olary Province, South Australia, Australia
  • Olary Station, Olary Province, South Australia, Australia
  • Olav Kjebekk Quarry, Landsverk, Evje og Hornnes, Aust-Agder, Norway
  • Olavs Mine, Storwartz mine field, Røros copper mines, Røros, Sør-Trøndelag, Norway
  • Ölberg, Hundsangen, Westerwald, Rhineland-Palatinate, Germany
  • Ölberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
  • Ölberg Quarry, Schriesheim, Odenwald, Baden-Württemberg, Germany
  • Olbersleben, Weimar, Thuringia, Germany
  • Olbia, Olbia-Tempio Pausania Province, Sardinia, Italy
  • Olbia-Tempio Pausania Province, Sardinia, Italy
  • Olbramov, Nové Hrady, South Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • O. L. Bryan Prospect, Pike Co., Alabama, USA
  • Olcott Mine (Triangle Mine), Eclipse Mine group, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old 20 Mine (Carolina Mineral Company #20 Mine), Spruce Pine, Spruce Pine District, Mitchell Co., North Carolina, USA
  • Old 25 Pipe (Pipe No. 14), Kingsgate, Gough Co., New South Wales, Australia
  • Old 45 Pipe (Old 45; Sachs pipe; Pipe No. 64), Kingsgate, Gough Co., New South Wales, Australia
  • Old Abe claim, Contact District, Elko Co., Nevada, USA
  • Old Abe Claim, Nogal District, Lincoln Co., New Mexico, USA
  • Old Abe Mine, White Oaks District, Lincoln Co., New Mexico, USA
  • Old Adit body, Discovery Gulch, Iron Mountain No. 2 District, Sierra Co., New Mexico, USA
  • Old airport, Marquette, Marquette Co., Michigan, USA
  • Old Airport Road Pit, Gilliam Co., Oregon, USA
  • Old Alabama Mine (South Hill Cut), Gordon Co., Georgia, USA
  • Old Almond Mine, Antelope Springs (Wheeler Amphitheater), Millard Co., Utah, USA
  • Old Amber Mine, Dry Gulch District (York District), Lewis and Clark Co., Montana, USA
  • Old Ancient Mine, Randolph Co., Alabama, USA
  • Old Anderson Placer Mine, Butte Co., California, USA
  • Old and New Quarries, Talladega Co., Alabama, USA
  • Old and New Stewart Prospects, Cherokee Co., Alabama, USA
  • Old Antrim Shale quarry, Charlevoix Co., Michigan, USA
  • Old arsenic and nickel mine, Seymour, New Haven Co., Connecticut, USA
  • Old Aslak Mine, Neskilen Mines, Arendal Iron Mines, Arendal, Aust-Agder, Norway
  • Old Atlantis Mine, Bryant District (Hecla District), Beaverhead Co., Montana, USA
  • Old Atwater Mine, Upson Co., Georgia, USA
  • Old Bald Mountain Placer Mine, Sierra Co., California, USA
  • Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Baldy District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Old Baldy Group, Jefferson Co., Montana, USA
  • Old Baldy Mountain, Pierce Co., Washington, USA
  • Old Baldy placers (Madera Canyon placers), Madera Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Baldy Prospect, Kern Co., California, USA
  • Old Baldy prospects, Littleshot Camp, Madera Canyon, Old Baldy District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Old Baldy tunnel, Coconino Co., Arizona, USA
  • Old Barag Banner (Chenba'erhu Co.), Hulunbuir League (Hulunbei'er Prefecture), Inner Mongolia Autonomous Region, China
  • Old Barton Pit (Clackamas County Old Barton), Clackamas Co., Oregon, USA
  • Old Bauxite Mine ("Metalleia"), Amorgos Island, Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon), Kykládes Prefecture, Aegean Islands (Aiyaíon) Department, Greece
  • Old Beam Mine (Great Beam Mine), Bugle, Treverbyn, St Austell District, Cornwall, England, UK
  • Old Beecher quarry, Hillsboro, Highland Co., Ohio, USA
  • Old Bell Mine, Upson Co., Georgia, USA
  • Old Beneis Farm, Marlborough, Cheshire Co., New Hampshire, USA
  • Old Bennett Ore Body Occurrence (Major Creek Limonite Mine; Moffat Iron Mine No. 1), Blake District (Mirage District; Cotton Creek District), Saguache Co., Colorado, USA
  • Old Bergviks Mine, Alvekilen Fe Mines, Tromøy, Arendal, Aust-Agder, Norway
  • Old Berry Mine, Tallapoosa Co., Alabama, USA
  • Old Beskow Mines, Torsåker, Hofors, Gästrikland, Sweden
  • Old Bextrum Mine, Pajarito Peak area, Pajarito District (Nogales District), Pajarito Mts, Santa Cruz Co., Arizona, USA
  • Old Bigney Placer, Liberty, Swauk District, Kittitas Co., Washington, USA
  • Old Black Diamond, Mesa Co., Colorado, USA
  • Old Black Diamond mine, Bern township, Athens Co., Ohio, USA
  • Old Blaine No. 5 Mine, Colerain township, Belmont Co., Ohio, USA
  • Old Blue Grouse Mine, Blue Grouse Mountain, Deer lake, Stevens Co., Washington, USA
  • Old Blue Mine (Gladiator), Madera Co., California, USA
  • Old Bluestone claim, Gabbs District, Nye Co., Nevada, USA
  • Old Bobadah Mine, Nymagee, Flinders Co., New South Wales, Australia
  • Old Boise Stone Company Quarry, Shaw Mountain District, Ada Co., Idaho, USA
  • Old Bolt place (Lang Ranch), Streeter area, Mason Co., Texas, USA
  • Old Bonanza Mine, Johnson Basin District, Deer Lodge Co., Montana, USA
  • Old Bones Occurrence, Forest Glen Area, Trinity Co., California, USA
  • Old Bonnie Tunnel, Coconino Co., Arizona, USA
  • Old Boolcoomata Station, Olary Province, South Australia, Australia
  • Old Bow Iron Mine, Forest of Dean, Gloucestershire, England, UK
  • Old Boy Mine (Mathilde Mine), Goffs, Signal District (Vontrigger District), San Bernardino Co., California, USA
  • Old Brandley Mine, Catbells, Keswick District, North and Western Region (Cumberland), Cumbria, England, UK
  • Old Buckeye Bar Mine, Monument Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • Old Buffalo, Cedar Creek-Boat Creek-CPW District, Marion Co., Arkansas, USA
  • Old Building Stone Deposit (1), Aquia Creek, Stafford Co., Virginia, USA
  • Old Building Stone Quarry (2), Aquia Creek, Stafford Co., Virginia, USA
  • Old Bull mine, Harmony District, Humboldt Co., Nevada, USA
  • Old Butterfly Mine, Ophir District, San Miguel Co., Colorado, USA
  • Old Cabin Prospect, Hoover Wilderness, Mono Co., California, USA
  • Old Cabin Prospect, Snyder Group, South Boulder District, Madison Co., Montana, USA
  • Old Callanan Quarry, Albany Co., New York, USA
  • Old Callaway Prospect, Monroe Co., Georgia, USA
  • Old Campground prospect, Bullion District, Lander Co., Nevada, USA
  • Old Camp-Y-Pit, Clearwater Co., Idaho, USA
  • Old Cardinal Gem Mine, Franklin Co., North Carolina, USA
  • Old Carroll Mine (Bun Patterson Mine), Cleveland Co., North Carolina, USA
  • Old Casey, Central Illinois River District, Josephine Co., Oregon, USA
  • Old Chancey Consolidated (Last Chance; Old Chancey), Shasta District, Shasta Co., California, USA
  • Old Channel (Clays Bar), Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Old Channel Mine, Galice District, Josephine Co., Oregon, USA
  • Old Channel Placer (North Channel Mine; Old Rogue Channel Mine; High Channel Mine), Galice District, Josephine Co., Oregon, USA
  • Old Channel Placers (Blue Gravel; Leipold; California-Oregon; Dean & Dean; Dan Green; Ankeny; Old Channel; Star; Stratton Creek; Last Chance; High Channel), Galice District, Josephine Co., Oregon, USA
  • Old Chapel Quarry (J. C. Digges and Sons), Clarke Co., Virginia, USA
  • Old Chapman occurrence, Castle Rock Springs area, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA
  • Old Charles Mine, Micaville, Celo, Spruce Pine District, Yancey Co., North Carolina, USA
  • Old Charlie mine, Fourmile, Custer District, Custer Co., South Dakota, USA
  • Old Chelsea, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
  • Old Chestnut Mountain Mine (Cook and Custer Mine), Chestnut Mountain, Franklin Co., Virginia, USA
  • Old Chicago Prospect, Hartville District, Goshen Co., Wyoming, USA
  • Old Chief Mine, Owl Head Buttes area, Owl Head District, Pinal Co., Arizona, USA
  • Old Childs Prospect, Lamar Co., Georgia, USA
  • Old Chink Placer, El Dorado Co., California, USA
  • Old Chippewa mine, Douglas Co., Wisconsin, USA
  • Old Cisler & Son's Brick Plant clay pit, Marietta, Washington Co., Ohio, USA
  • Old City Quarry (City Quarry), North Hill, Fairmont Park, Crestmore Quarries, Crestmore, Riverside Co., California, USA
  • Old Claim Mine, Fierro Manganese District, Hanover-Fierro District, Grant Co., New Mexico, USA
  • Old Clay Deposit N. of Solomons Island, Calvert Co., Maryland, USA
  • Old Cohutta Mine, Chatsworth, Murray Co., Georgia, USA
  • Old Colony Exploration Prospect, Calumet, Calumet Township, Houghton Co., Michigan, USA
  • Old Colony Mine (Colony Mine), Alleghany, Forest District (Alleghany; Chips Flats; Minnesota), Sierra Co., California, USA
  • Old Columbia Mine, Lumpkin Co., Georgia, USA
  • Old Comanche Mine (Old Comanche prospect), Chloride, Chloride District, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Old Combe Martin Mine, Combe Martin, North Devon, Devon, England, UK
  • Old Congo coal mine, Congo, Perry Co., Ohio, USA
  • Old Coocoran rush, Coocoran Opal Fields, Lightning Ridge, Finch Co., New South Wales, Australia
  • Old Copper Falls Fissure Mine, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA
  • Old Copper Mine Prospect, Clay Co., Alabama, USA
  • Old Copper Show, Andamooka Ranges - Lake Torrens area, South Australia, Australia
  • Old Coso Mine, China Lake Naval Ordnance Test Station, Coso District (New Coso District), Coso Mts (Coso Range), Inyo Co., California, USA
  • Old Cottingham Mine (Cottingham No. 1), Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Country Road locality, Thomaston, Knox Co., Maine, USA
  • Old Crescent no. 3 mine, Crescent, Belmont Co., Ohio, USA
  • Old Crow, Eagle Creek District, Baker Co., Oregon, USA
  • Old Crow, Fremont District, Wayne Co., Utah, USA
  • Old Crow Occurrence, Greenback District (Upper Grave Creek District), Josephine Co., Oregon, USA
  • Old Crow occurrence, Monumental, Patrick Creek District, Klamath Mts, Del Norte Co., California, USA
  • Old Crow Prospect, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
  • Old Dad claim, Gold Butte District, Clark Co., Nevada, USA
  • Old Dad Mine, Illinois - Kentucky Fluorspar District, Crittenden Co., Kentucky, USA
  • Old Dad Mountain claim, Old Dad Mountain, Old Dad Mts, San Bernardino Co., California, USA
  • Old Dad Mountain deposit (Old Dad deposit; Riet; Reat), Old Dad Mts, San Bernardino Co., California, USA
  • Old Dad Mountain, Old Dad Mts, San Bernardino Co., California, USA
  • Old Dad Mts, San Bernardino Co., California, USA
  • Old Dalles Pit, Hood River Co., Oregon, USA
  • Old Dean mine (James Britton mine), Mercer Co., Kentucky, USA
  • Old Dell Robertson Prospect, Illinois - Kentucky Fluorspar District, Livingston Co., Kentucky, USA
  • Old Democrat mine, Chief District, Lincoln Co., Nevada, USA
  • Old Dependable Antimony Mine (Old Dependable Mine; Transportation Mines Inc. property), South Fork Canyon, Panamint Mts (Panamint Range), Death Valley National Park, Inyo Co., California, USA
  • Old Dewees Mine, Section 40, Terlingua, Terlingua District, Brewster Co., Texas, USA
  • Old D. H. and S. Mine (Stratman Mine), Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old Diamond Pit, Coos Co., Oregon, USA
  • Old Dick Mine (American Mine), Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Diggings Placer Mine, Mariposa Co., California, USA
  • Old Discovery Placer (Boulder Placer; New Discovery Placer; Ruby Bar Placer), Ruby Creek, Whatcom Co., Washington, USA
  • Old Dixie Mine (Coalshire Coldshort), Rockbridge Co., Virginia, USA
  • Old Dixon Prospect, Rabbit Valley, Wayne Co., Utah, USA
  • Old Doane Copper Mine, Carbon Co., Wyoming, USA
  • Old Doe Mine, Little Rattlesnake Mountain, Klamath Mts, Del Norte Co., California, USA
  • Old Dollie, Fresno Co., California, USA
  • Old Domain Mine (Old Dominion Mine; Ortega), San Bernardino Co., California, USA
  • Old Dominion, Albemarle Co., Virginia, USA
  • Old Dominion Extension Mine (Denver group; Cuprite group; Nevada group; Stead group), Midland City, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Dominion Group (Unpatented Claims: Gold Nugget Nos. 1-3; Gold Nugget Group), Vallecito Creek Area, La Plata Co., Colorado, USA
  • Old Dominion Limestone Quarry, Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Dominion Mine area, Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Dominion Mine area, Old Dominion Mountain, Stevens Co., Washington, USA
  • Old Dominion Mine, Augusta Co., Virginia, USA
  • Old Dominion Mine, Old Dominion Mountain, Stevens Co., Washington, USA
  • Old Dominion Mine (Old Dominion shaft; Globe and Transit Mine; Old Dominion and United Globe Mine), Buffalo Hill, Old Dominion vein system, Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Dominion Mine, Stokes District, Cassia Co., Idaho, USA
  • Old Dominion Mine, Tuolumne Co., California, USA
  • Old Dominion, Moose Lake District, Granite Co., Montana, USA
  • Old Dominion Mountain, Stevens Co., Washington, USA
  • Old Dominion Prospect, Flathead Co., Montana, USA
  • Old Dominion Pyrite Mine, Gold-Pyrite Belt, Louisa Co., Virginia, USA
  • Old Dominion Railway cut, Arlington Co., Virginia, USA
  • Old Dominion Soapstone Quarry, Old Dominion, Albemarle Co., Virginia, USA
  • Old Dominion vein system, Black Peak area, Copper Hill, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Dorsey farm, York township, Belmont Co., Ohio, USA
  • Old Dough claim, Caldwell Pines, East Mayacmas District, Mayacmas Mts (Mayacamas Mts), Lake Co., California, USA
  • Old Dowdy Mine, Richmond Mountain, Gunnison Co., Colorado, USA
  • Old Dude Shaft, Macho District, Sierra Co., New Mexico, USA
  • Old Duke Quarry, Orange Co., North Carolina, USA
  • Old Dupont Mine, Wilkinson Co., Georgia, USA
  • Old Durgy Mine, Person Co., North Carolina, USA
  • Old Dutch Diggings, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Dutchman Prospect, Bay Horse District, Custer Co., Idaho, USA
  • Old Dyke Mine, Bust-Up Mine, Cherokee Co., Alabama, USA
  • Old Eagle Mine (Stake Lease 3707), Owl Head Buttes area, Owl Head District, Tortolita Mts, Pinal Co., Arizona, USA
  • Old Eagle Mine, Trinity Co., California, USA
  • Old Edge vein, Eyam, Derbyshire, England, UK
  • Old Empire Mine, El Dorado Co., California, USA
  • Oldenburg Mine (Oldenberg), Galena District, Jo Daviess Co., Illinois, USA
  • Oldenburg, Schleswig-Holstein, Germany
  • Oldendorf Shale Deposit, Trempealeau Co., Wisconsin, USA
  • Oldenhoven, Groningen, Netherlands
  • Olden, Krokom, Jämtland, Sweden
  • Olden Mine (Eastern Star claim), Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA
  • Olden power station, Krokom, Jämtland, Sweden
  • Olden silver mine, Krokom, Jämtland, Sweden
  • Olden Township, Frontenac Co., Ontario, Canada
  • Oldenzaal, Overijssel, Netherlands
  • Olderog Creek, Arahura Valley, South Island, New Zealand
  • Old Evergreen Drain Tunnel (Lower Evergreen Drainage and Transportation Tunnel; Old Evergreen Mining and Tunneling Company), Big Cottonwood District, Wasatch Mts, Salt Lake Co., Utah, USA
  • Old Fairview mine, Barton, Belmont Co., Ohio, USA
  • Old Faithful and Little Bimbo Occurrence, Idaho Co., Idaho, USA
  • Old Faithful Group Mine, Idaho Primitive Area, Pistol Creek District, Valley Co., Idaho, USA
  • Old Faithful, Liberty Co., Montana, USA
  • Old Faithful Mine, Faithful Group, Baldy Mountain District, Beaverhead Co., Montana, USA
  • Old Faithful Mine, Miners Mountain District, Miners Mountain, Wayne Co., Utah, USA
  • Old Faithful Mining Group, Applegate District, Jackson Co., Oregon, USA
  • Old Faithful No. 1 Occurrence, Pueblo District (Denio District), Harney Co., Oregon, USA
  • Old Faithful No. 2 Prospect, Miners Mountain, Wayne Co., Utah, USA
  • Old Faithful Prospect, Jefferson Co., Montana, USA
  • Old Fall Level (Snail Beds Level), Ireshopeburn, Weardale, North Pennines, Co. Durham, England, UK
  • Old Federal Coal Co. mine, Broadwell, Bern township, Athens Co., Ohio, USA
  • Old Field Mine, Gold Hill District, Rowan Co., North Carolina, USA
  • Old Fields, Hardy Co., West Virginia, USA
  • Old Flamoga Mine, Twiggs Co., Georgia, USA
  • Old Flappy mine, Foxdale, Isle of Man
  • Old Fluorspar Mine, Slipfontein, Brits District, Western Bushveld Complex, Northwest Province, South Africa
  • Old Flushing Coal Co. mine, Flushing, Belmont Co., Ohio, USA
  • Old Follis Pits, Fayette Co., Tennessee, USA
  • Old Forge Magnetite Mine, Cranberry Magnetite District, Carter Co., Tennessee, USA
  • Old Fort Jones Mines, Gottsville, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • Old Fort Lane claim, Gold Hill District, Jackson Co., Oregon, USA
  • Old Fort, McDowell Co., North Carolina, USA
  • Old Fortner Branch Occurrence (Old Dam Prospect), Powell River District, Claiborne Co., Tennessee, USA
  • Old Foxdale Mine, Foxdale, Isle of Man
  • Old France Stone Co. Holland quarry, Monclava, Lucas Co., Ohio, USA
  • Old France Stone Co. quarry, Bascom, Seneca Co., Ohio, USA
  • Old France Stone Co. quarry, Luckey, Troy Township, Wood Co., Ohio, USA
  • Old Francis Lake Trail Occurrence, Wallowa Range District, Wallowa Co., Oregon, USA
  • Old Fuller Earth Mine, Clarke Co., Alabama, USA
  • Old Furnace Mine, High Bridge, High Bridge Township, Hunterdon Co., New Jersey, USA
  • Old Gang Mines, Reeth, Swaledale, North Pennines, North Yorkshire, England, UK
  • Old Gibbs Mine (Washout; Gibbs Clay Mine; Bland), Celo, Spruce Pine District, Yancey Co., North Carolina, USA
  • Old Glades Road Deposit, Amherst Co., Virginia, USA
  • Old Glencrieff Vein, Wanlockhead, Dumfries & Galloway (Dumfries-shire), Scotland, UK
  • Old Globe Mine, Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Old Glory Claim, Colusa Co., California, USA
  • Old Glory claim, Hilton Mines (Hilton Mine group; Hiltano group; Hiltano & State of Maine group), Copper Camp, Hilton (Lead Mountain), Empire District, Empire Mts, Pima Co., Arizona, USA
  • Old Glory Claim (Last Chance Prospect; Last Chance Spar-Mica Dyke Prospect), Turret District, Chaffee Co., Colorado, USA
  • Old Glory claim, Seeley group, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Old Glory Claim, Wasco Hill, Park City District, Colville Indian Reservation, Okanogan Co., Washington, USA
  • Old Glory Creek Mine, Fairhaven District, Northwest Arctic Borough, Alaska, USA
  • Old Glory, Fern Creek, Mono Co., California, USA
  • Old Glory Hole, Big Horn Co., Wyoming, USA
  • Old Glory; Last Chance Mine, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
  • Old Glory Mine, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
  • Old Glory Mine (C. B. Jacobs deposit; Argosy), San Bernardino Co., California, USA
  • Old Glory Mine group, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Old Glory Mine, Illinois River District, Josephine Co., Oregon, USA
  • Old Glory Mine, Melrose District, Silver Bow Co., Montana, USA
  • Old Glory Mine, Old Glory Mine group, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Old Glory Mine, Pryor Mountains, Carbon Co., Montana, USA
  • Old Glory mine (Tripp pit), Tripp-Veteran pit, Robinson District, White Pine Co., Nevada, USA
  • Old Glory Mine (upper workings); American Eagle, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
  • Old Glory Mine, Volcano District, Elmore Co., Idaho, USA
  • Old Glory Mountain, Park City District, Colville Indian Reservation, Okanogan Co., Washington, USA
  • Old Glory North Iron Deposit, Melrose District, Silver Bow Co., Montana, USA
  • Old Glory Occurrence, Fairhaven District, Northwest Arctic Borough, Alaska, USA
  • Old Glory (Peg Leg), San Bernardino Co., California, USA
  • Old Glory Prospect (Bliss; Old Bliss), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA
  • Old Glory prospect, Permian copper deposits, Stonewall Co., Texas, USA
  • Old Glory-Seattle Creek; Leslie Prospect, Fairbanks District, Fairbanks North Star Borough, Alaska, USA
  • Old Godfrey Quarry, Kent Co., Michigan, USA
  • Old Gold, Cripple Creek District, Teller Co., Colorado, USA
  • Old Gold Lode Claim, Sixes River District, Coos Co., Oregon, USA
  • Old Gold Mine, Idaho District, Clay Co., Alabama, USA
  • Old Gold Mines (MRDS - 10260448), Inyo Co., California, USA
  • Old gold pit, Baraga Co., Michigan, USA
  • Old Gold Placer Mine, Sierra Co., California, USA
  • Old Gold Prospect, Valdez Creek District, Matanuska-Susitna Borough, Alaska, USA
  • Old Goose Creek Quarry (Arlington Stone Company Quarry; Belmont Quarry), Leesburg, Loudoun Co., Virginia, USA
  • Old Gordon Place Deposit (Crews Prospect), Monroe Co., Mississippi, USA
  • Old Granby Mine, Mount Hersey, Mount Hersey-Lower Cave District, Newton Co., Arkansas, USA
  • Old Grandad Mine (Bonnie Bell), Sawtooth District, Blaine Co., Idaho, USA
  • Old Grandad Mine (Chaparral Hill Mine), Chaparral Hill, Fort Jones, Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Old Grandad, Uravan District, Montrose Co., Colorado, USA
  • Old Grandma group, Havilah, Clear Creek District, Kern Co., California, USA
  • Old Gravel Mine, El Dorado Co., California, USA
  • Old Gray Mine, Railroad Flat, Railroad Flat District, Calaveras Co., California, USA
  • Old Greensand-Diatomaceous Earth Pit, Calvert Co., Maryland, USA
  • Old Greenshields mine (Nayes mine; Beaudoin mine), Saint-Joseph-de-Coleraine, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada
  • Old Grindstone Prospect, Inyo Co., California, USA
  • Old Gruno Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old Guard Mine (Royal Guard Mine), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
  • Old Gunnislake Mine, Gunnislake Area, Callington District, Cornwall, England, UK
  • Old Hadley (Graphic) Mining District, Cooks Peak District (Cooke's Peak District), Luna Co., New Mexico, USA
  • Old Hag Mine, Hag Mine ore field, Hedemora, Dalarna, Sweden
  • Old Hag prospect #1, Van Dam Peak, Poway, San Diego Co., California, USA
  • Old Hag prospect #2, Van Dam Peak, Poway, San Diego Co., California, USA
  • Old Halt Mine, Washington Co., Utah, USA
  • Oldham Co., Kentucky, USA
  • Oldham Crushed Stone, Rogers Group Inc., Brownsboro, Oldham Co., Kentucky, USA
  • Old Ham Mine (Clearwell Caves), Forest of Dean, Gloucestershire, England, UK
  • Oldham prospects, Placer Creek, Red River District, Taos Co., New Mexico, USA
  • Oldham Road, Kansas City, Jackson Co., Missouri, USA
  • Old Hancock Pit, Hardeman Co., Tennessee, USA
  • Old Happy, Uravan District, Montrose Co., Colorado, USA
  • Old Harbor Prospect, Kodiak District, Kodiak Island Borough, Alaska, USA
  • Old Harper Quarry, Elbert Co., Georgia, USA
  • Old Harrigal Kaolin Mine, Aiken Co., South Carolina, USA
  • Old Hartman Mine (Hartman Mine), Friedensville, Saucon Valley, Upper Saucon Township, Lehigh Co., Pennsylvania, USA
  • Old Hat Mine, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA
  • Old Henderson and Fryer Placer, El Dorado Co., California, USA
  • Old Henery Occurrence (Henry Claim), Bohemia District (Champion District), Lane Co., Oregon, USA
  • Old Henry Kerns Place Prospect, Frederick Co., Virginia, USA
  • Old Henry Mine, West Point, West Point District, Calaveras Co., California, USA
  • Old Henry Placer, Nevada Co., California, USA
  • Old Hickles property, Ajo District, Pima Co., Arizona, USA
  • Old Hickory Brick Number 1 Pit, Loudon Co., Tennessee, USA
  • Old Hickory Clay No. 1 Pit (Volunteer and Thomas Pits), Weakley Co., Tennessee, USA
  • Old Hickory Clay No. 2 Pit (McClain Pit), Weakley Co., Tennessee, USA
  • Old Hickory Clay No. 3 Pit, Weakley Co., Tennessee, USA
  • Old Hickory Mine, Copper Mountain, Republic, Republic District, Ferry Co., Washington, USA
  • Old Hickory Mine, El Dorado Co., California, USA
  • Old Hickory Mine, Hickory, Graves Co., Kentucky, USA
  • Old Hickory Mine, Rocky District, Rocky Range, Beaver Co., Utah, USA
  • Old Hickory Prospect, Dinwiddie Co., Virginia, USA
  • Old Hickory Prospect, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
  • Old highway 95 Roadcut, McKinzie Creek (McKenzie Creek), Idaho Co., Idaho, USA
  • Old Highway Mine, Kings Creek District, Cherokee Co., South Carolina, USA
  • Old Highway Shale Prospect, Christian Co., Kentucky, USA
  • Old Highway US 6 and Dove Springs Road, Ricardo, Kern Co., California, USA
  • Old Hill prospect, Oxbow Estates, Payson District (Green Valley District), Gila Co., Arizona, USA
  • Old Hogem, Omenica Mining Division, British Columbia, Canada
  • Old Hollow Mine, Illinois - Kentucky Fluorspar District, Crittenden Co., Kentucky, USA
  • Old Home Placer, Tuolumne Co., California, USA
  • Old Homestead Mine, Jicarilla District, Lincoln Co., New Mexico, USA
  • Old Hopeful and New Occurrence, Pueblo District (Denio District), Harney Co., Oregon, USA
  • Old Hopkins Mine (Buster Mine; Buster MS 2091 Patented claims), Prescott quadrangle, Yavapai Co., Arizona, USA
  • Old Horse Springs, Catron Co., New Mexico, USA
  • Old Houston Mine, Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Old Huffman quarry, Carey, Wyandot Co., Ohio, USA
  • Old Humboldt prospect, Battle Mountain District, Lander Co., Nevada, USA
  • Old Hundred, Animas District, San Juan Co., Colorado, USA
  • Old Hundred Placer Mine, Jackson Peak, Klamath Mts, Siskiyou Co., California, USA
  • Old Hurricane Church Prospect, Hardin Co., Tennessee, USA
  • Old Ida Blende Mine (Ida-Blende Mine; Ida; Blende), Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Independence Occurrence, Box Canyon District, Gunnison Co., Colorado, USA
  • Old Indian Mine (F. J. Ward), East Shasta Copper - Zinc District, Shasta Co., California, USA
  • Old Indian Mine (Hansen Mine ?), Bowerman Peak, Klamath Mts, Siskiyou Co., California, USA
  • Old Irish Republic prospect, Frazier Mountain, Frazier Park area, Frazier Mountain District (Fraser Mountain District), Sespe Frazier Roadless Area Review & Evaluation (RARE) II Area, San Emigdio Mts, Ventura Co., California, USA
  • Old Iron Mines, Dickson Co., Tennessee, USA
  • Old iron mine, Thendara, Town of Webb, Herkimer Co., New York, USA
  • Old Ironsides Claim, Skeleton Creek District, Camas Co., Idaho, USA
  • Old Ironsides mine, Breckenridge District, Summit Co., Colorado, USA
  • Old Ironsides Mine (Colorado-Deadwood Mine), Spearfish, Trojan District, Lawrence Co., South Dakota, USA
  • Old Ironsides Mine, Orient District, Saguache Co., Colorado, USA
  • Old Ironsides prospect, Mesa Grande, Mesa Grande District, San Diego Co., California, USA
  • Old Jack Mine, La Posa District (Wellton District; Wellton Hills District), Wellton Hills-Copper Mts, Yuma Co., Arizona, USA
  • Old Jackson Tunnel Prospect, Ruby Creek District, Clearwater Co., Idaho, USA
  • Old Jasper, El Dorado Co., California, USA
  • Old Jimbo Bob Mine, Big Indian District (Big Indian Wash - Lisbon Valley Area), San Juan Co., Utah, USA
  • Old Jim Mine, Marion, Illinois - Kentucky Fluorspar District, Crittenden Co., Kentucky, USA
  • Old J. L. Allen Prospect, Madison Co., Tennessee, USA
  • Old Joe group (Patented claims MS 1263), Yavapai Co., Arizona, USA
  • Old Joe Mine (Mount Jefferson Lodge Group), Mineral Hill District (Pony District), Madison Co., Montana, USA
  • Old Joe Prospect, San Bernardino Co., California, USA
  • Old John Lowry Property, Winston Co., Mississippi, USA
  • Old Johnson Lode Prospect, Middle Fork District, Lemhi Co., Idaho, USA
  • Old Jolly Place, Love Valley, Iredell Co., North Carolina, USA
  • Old Jonah Mine (Gold Nugget Mine; Loss Brothers claims), Chuichu area, Silver Reef Mountains, Tat Momoli Mts, Silver Reef District, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Old Jonan Mine, Greene Wash area, Chuichu area, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Old Jordan Mine 1863 (U. S. Mining Company 1899), Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Old Judge Mine, El Dorado Co., California, USA
  • Old Jupiter Mine (Jupiter Mine; Jupiter Consolidated Mine), Grizzly Flat, Iowa Hill area, Iowa Hill District, Placer Co., California, USA
  • Old Kanaka Mine, Swiss Bar, Klamath Mts, Siskiyou Co., California, USA
  • Old Kentuck Deposit, Burgdorf District, Idaho Co., Idaho, USA
  • Old Kentuck (Silver Lode; Silver Chief), Philipsburg District (Flint Creek District), Granite Co., Montana, USA
  • Old Kentucky, Apex District, Gilpin Co., Colorado, USA
  • Old Kentucky, Red Mountain District, Ouray Co., Colorado, USA
  • Old Kernville, Cove District, Kern Co., California, USA
  • Old Kibbe Shaft Occurrence, Telluride District, San Miguel Co., Colorado, USA
  • Old Kilpatrick, Strathclyde (Dunbartonshire), Scotland, UK
  • Old Kilton Quarry, Grafton, Grafton Co., New Hampshire, USA
  • Old Laguna, Cibola Co., New Mexico, USA
  • Old lake shorelines, Death Valley, Death Valley National Park, Inyo Co., California, USA
  • Old Lake Shore quarry, Kelleys Island, Lake Erie, Erie Co., Ohio, USA
  • Old Lead Mine, Angel District, Calhoun Co., Alabama, USA
  • Old lead mine, Brookfield, Fairfield Co., Connecticut, USA
  • Old Ledoux Tin Prospects, Kings Mountain District, Cleveland Co., North Carolina, USA
  • Old Lee Goodman Prospect, Amelia Co., Virginia, USA
  • Old Lemroe Deposit, Elk City District, Idaho Co., Idaho, USA
  • Old Leopold Hill, Fitzroy Crossing, Western Australia, Australia
  • Old L'Etacq Quarry, St Ouen, Jersey, Channel Islands
  • Old Leyden Mine, Foothill District, Jefferson Co., Colorado, USA
  • Old Liberty Group, Squaw Creek District, Gem Co., Idaho, USA
  • Old lime quarries, Littleton, Middlesex Co., Massachusetts, USA
  • Old Limestone Quarry, Door Co., Wisconsin, USA
  • Old Little mine, Garfield District, Mineral Co., Nevada, USA
  • Old Load Mine, Fairview, Georges Creek-Jimmie Creek District, Marion Co., Arkansas, USA
  • Old Loebs quarry, Whitehouse, Lucas Co., Ohio, USA
  • Old Log Cabin Placer Mine, Placer Co., California, USA
  • Old Lout Mine, Poughkeepsie Gulch, Red Mountain District, San Juan Co., Colorado, USA
  • Old Ludington Mine, Menominee iron range, Dickinson Co., Michigan, USA
  • Old Luganure mine, Glendasan, Co. Wicklow, Ireland
  • Old Luster lode, South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Old Lutz Prospect, Cleveland Co., North Carolina, USA
  • Old Lyme, New London Co., Connecticut, USA
  • Old Lyon prospect, Yavapai Co., Arizona, USA
  • Old Mack, Middle Fork Judith RARE II Area, Yogo, Judith Basin Co., Montana, USA
  • Old Macon Mining Company Mine, Twiggs Co., Georgia, USA
  • Old Madison Stone Co. quarry, West Jefferson, Madison Co., Ohio, USA
  • Old Maid Mine, Dexter Creek, Paquin District, Ouray Co., Colorado, USA
  • Old Maid Mine, Plomosa District, Plomosa Mts, La Paz Co., Arizona, USA
  • Old Maids quarry, Woonsocket, Providence Co., Rhode Island, USA
  • Old Man Breccia Prospect, Yentna District, Matanuska-Susitna Borough, Alaska, USA
  • Old Man Diorite Prospect, Yentna District, Matanuska-Susitna Borough, Alaska, USA
  • Old Man Hat prospect, Gibraltar Range National Park, Drake Co., New South Wales, Australia
  • Old Man Mine, Fleming District, Grant Co., New Mexico, USA
  • Old Man Mine, Lower San Miguel District, San Miguel Co., Colorado, USA
  • Oldman Mining Company Prop Occurrence, Bear Lodge District, Crook Co., Wyoming, USA
  • Old Man of the Mountains Mine (Melville; M. M. Mine), Plaskett, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • Old Man ore body, Iron Mountain Mine, Iron Mountain, Iron Mountain [town], West Shasta Copper - Zinc District, Shasta Co., California, USA
  • Oldman Ranch, Carbon Co., Wyoming, USA
  • Old Man's Creek, Harrisonville, Gloucester Co., New Jersey, USA
  • Old Marble quarry, Lewisburg, Preble Co., Ohio, USA
  • Old Marble quarry, Needles, Custer Co., South Dakota, USA
  • Old Mass Mine, Ontonagon Co., Michigan, USA
  • Old Mayflower Mine, Bingham District, Oquirrh Mts, Utah Co., Utah, USA
  • Old Mays Place Prospect (Hughes Bank), Lewis Co., Tennessee, USA
  • Old McCoy, Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
  • Old McDermott Farm Prospect, Louisa Co., Virginia, USA
  • Old McGregor & Old McGregor No. 2, Calaveras Co., California, USA
  • Old McKenny Mine, Calaveras Co., California, USA
  • Old McKinley Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old Mendota Copper Mine, Lac La Belle, Keweenaw Co., Michigan, USA
  • Old Mexican Group, Sierra Co., California, USA
  • Old Mexico, Mono Co., California, USA
  • Old Mexico Prospect, Uravan District, San Miguel Co., Colorado, USA
  • Old Miami Stone quarry, Liberty township, Delaware Co., Ohio, USA
  • Old Middlehope Mine, Ireshopeburn, Weardale, North Pennines, Co. Durham, England, UK
  • Old Middleman Occurrence (Part of The Columbia Group; Ralph Vein), Cracker Creek District (Sumpter District; Bourne District; McCully District), Baker Co., Oregon, USA
  • Old Mike mine (Great Northern; Old Mike M.S.2212), Custer, Custer District, Custer Co., South Dakota, USA
  • Old Millclose Mine, Matlock, Derbyshire, England, UK
  • Old Miller Occurrence (Slim Jim Mines), Lewis and Clark Co., Montana, USA
  • Old Mill, Inyo Co., California, USA
  • Old Mill mine, Bullion District, Lander Co., Nevada, USA
  • Old Mill Placer Mine, Dougherty Bluff, Klamath Mts, Siskiyou Co., California, USA
  • Old Mill Road Quarry (Dog Pound Quarry), Oamaru, Otago, South Island, New Zealand
  • Old Mill, Saddle Mountain District, The Tablelands Mts, Pinal Co., Arizona, USA
  • Old Mine, Cerro Blanco Mts, Pima Co., Arizona, USA
  • Old Mine, Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
  • Old Mine, Great Orme, Llandudno, Conwy (Gwynedd; Caernarvonshire), Wales, UK
  • Old Mine Park (Lane’s Mine of Trumbull; Hubbard Mine; Long Hill Mine; Old Tungsten Mine), Trumbull, Fairfield Co., Connecticut, USA
  • Old Mine Plaza construction site, Trumbull, Fairfield Co., Connecticut, USA
  • Old Mines area, Washington Co., Missouri, USA
  • Old mines, Dadeville, Dade Co., Missouri, USA
  • Old mines, Elk township, Noble Co., Ohio, USA
  • Old mines, Maynard, Belmont Co., Ohio, USA
  • Old Mines (MRDS - 10129493), Dickson Co., Tennessee, USA
  • Old Mine Terrace prospect #1, Cahuilla Mountain (Coahuila Mtn), Cahuilla, Cahuilla District, Riverside Co., California, USA
  • Old Mine Terrace prospect #2, Cahuilla Mountain (Coahuila Mtn), Cahuilla, Cahuilla District, Riverside Co., California, USA
  • Old Mine Trail prospect, Cahuilla Mountain (Coahuila Mtn), Cahuilla, Cahuilla District, Riverside Co., California, USA
  • Old Mine Workings (MRDS - 10070375), Fort Hall District, Bannock Co., Idaho, USA
  • Old Mint Mine, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Old Mission Mine (Old Bat Mine), Amole District, Tucson Mts, Pima Co., Arizona, USA
  • Old Missouri Prospect, Custer District, Custer Co., South Dakota, USA
  • Old Monroe Pit, Madison Co., Tennessee, USA
  • Old Montana Placer (Idaho; Montana; Sacajawea), Tenmile District, Idaho Co., Idaho, USA
  • Old More Shaft Prospect, Junction District (Little Eightmile District), Lemhi Co., Idaho, USA
  • Old Morgan Bar placer, Cascade, Plumas Co., California, USA
  • Old Moulds Mine, Langthwaite, Arkengarthdale, North Pennines, North Yorkshire, England, UK
  • Old Mountain Mines, Londonderry Mines (Acadia Mines), Colchester Co., Nova Scotia, Canada
  • Old Mulcahy Mine, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Murry Mine (Murray Mine; Old Murray No. 1 Mine; Dutro Mine; Dutra Mine), Burro Mountain, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • Old Nehalem Quarry, Tillamook Co., Oregon, USA
  • Old Nell Mine, Covada, Covada District (Enterprise District), Colville Indian Reservation, Ferry Co., Washington, USA
  • Old Nelson, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA
  • Old New York Coal Co. Mine No. 36, Athens Co., Ohio, USA
  • Old New York Coal Co. Mine No. 38, Buchtel township, Athens Co., Ohio, USA
  • Old Nicholas Smelter Prospect, Gilmore District (Texas District), Lemhi Co., Idaho, USA
  • Old Nick Mine, Bridesville, Greenwood Mining Division, British Columbia, Canada
  • Old Ninety-Seven Mine (Old 97 prospect; Old 97 Mine; Arastara group; Emerson group), Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Old Nixon Edington mine, Nelsonville, Athens Co., Ohio, USA
  • Old No. 2 Prospect, Fairbanks District, Fairbanks North Star Borough, Alaska, USA
  • Old Noble Mine, Alpine, Laguna Mts, San Diego Co., California, USA
  • Old Noll Mine, Yudnamutana District, North Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Old Northfork Nos. 1 & 2 Mine (Juniper Mill Site), Madera Co., California, USA
  • Old North Mine, San Clemente, Orange Co., California, USA
  • Old Oaker Mine (Daggett Lease), Amador Co., California, USA
  • Old Oasis Prospect, San Bernardino Co., California, USA
  • Old Occidental Mine, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Ontario Gem Mine, Dorion Township, Thunder Bay District, Ontario, Canada
  • Old Pacific Mine, Ophir, Ophir District (Auburn District), Placer Co., California, USA
  • Old Paint mine, Epsom, Merrimack Co., New Hampshire, USA
  • Old Pap Mine (Old Pap claim), Old Pap-Old Put Mines, Rosemont (Rosemont Camp), Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Pap-Old Put Mines, Rosemont (Rosemont Camp), Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Parks Property Prospect, Hart Co., Georgia, USA
  • Old Payne and Nelson Mine, Twiggs Co., Georgia, USA
  • Old Pen Mine, Bear Valley Mining District, San Bernardino Co., California, USA
  • Old Pennsylvanian placer group, Wrightson District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Pete Mine (Yim-Wheelock Mine), Stedman, Stedman District, San Bernardino Co., California, USA
  • Old Pioneer Tunnel, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA
  • Old Pittsburg Block Coal Co. mine, Kenwood, Harrison Co., Ohio, USA
  • Old Pittsburgh, Yuba Co., California, USA
  • Old Placers area, Gold Basin District, White Hills, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Old Placers District, Santa Fe Co., New Mexico, USA
  • Old placers, Yavapai Co., Arizona, USA
  • Old Pluhek Mines, Leamington, Juab Co., Utah, USA
  • Old Pope Mine, Hoover Dam area, Mohave Co., Arizona, USA
  • Old Portersville Mines, De Kalb Co., Alabama, USA
  • Old Potts Gill Mine, Potts Gill, Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK
  • Old Pound China Clay Pit, Currian Vale, St Stephen-in-Brannel, St Austell District, Cornwall, England, UK
  • Old Powder Group, Moab - Bridger Jack Mesa, San Juan Co., Utah, USA
  • Old Powers Mine, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA
  • Old Price Property, Henry Co., Virginia, USA
  • Old Priest mine, Tecolote District, San Miguel Co., New Mexico, USA
  • Old Princess Placer Mine, Butte Co., California, USA
  • Old prospect, Arøya (Arö), Langesundsfjorden, Larvik, Vestfold, Norway
  • Old Providence Mine, Kettlewell, Wharfedale, North Pennines, North Yorkshire, England, UK
  • Old Pueblo Mine (Quien Sabe Mine), Amole District, Tucson Mts, Pima Co., Arizona, USA
  • Old Purtee quarry, Genoa, Ottawa Co., Ohio, USA
  • Old Put Mine, Groom Creek District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Old Put Mine, Old Pap-Old Put Mines, Rosemont (Rosemont Camp), Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Old Quaker mine, Ward District, White Pine Co., Nevada, USA
  • Old Quaker, Uravan District, Montrose Co., Colorado, USA
  • Old quarries, Tiffin, Seneca Co., Ohio, USA
  • Old quarry (2), Sandusky River, Tiffin, Seneca Co., Ohio, USA
  • Old quarry, Allen township, Ottawa Co., Ohio, USA
  • Old quarry, Bellefontaine, Logan Co., Ohio, USA
  • Old quarry, Big Darby Creek, Franklin Co., Ohio, USA
  • Old quarry, Charloe, Paulding Co., Ohio, USA
  • Old quarry, Florida, Henry Co., Ohio, USA
  • Old quarry, La Haie forest, Bertrix, Luxembourg Province, Belgium
  • Old quarry, Mason township, Lawrence Co., Ohio, USA
  • Old Quarry (MRDS - 10131011), Greene Co., Virginia, USA
  • Old Quarry Nos. 1 and 2, San Bernardino Co., California, USA
  • Old Quarry, Råna, Ballangen, Nordland, Norway
  • Old Quarry Road, Heathcote, Victoria, Australia
  • Old quarry, Sandusky River, Tiffin, Seneca Co., Ohio, USA
  • Old quarry, Silica, Lucas Co., Ohio, USA
  • Old Quarry (The Ledge; Assonet Ledge quarry; Fall River Granite Company quarry), Freetown, Bristol Co., Massachusetts, USA
  • Old quarry, Wooster, Wayne Co., Ohio, USA
  • Old Quincy Mine No. 1, Quincy Mine, Hancock, Houghton Co., Michigan, USA
  • Old Quincy Mine No. 2, Quincy Mine, Hancock, Houghton Co., Michigan, USA
  • Old Railroad Shale Prospect, Bell Co., Kentucky, USA
  • Old Rattler (Shale; Lucky Day; Oscar), Dry Valley Area, San Juan Co., Utah, USA
  • Old Ray Mine, Josephine Creek District, Josephine Co., Oregon, USA
  • Old Red Fox vein, Nogal District, Lincoln Co., New Mexico, USA
  • Old Red Mine (Golden Economy; Golden Bullet), Mule Creek, Curry Co., Oregon, USA
  • Old Reed, Madera Co., California, USA
  • Old Reef (Adelong United), Adelong, Wynyard Co., New South Wales, Australia
  • Old Reliable group (Yavapai Consolidated property; Union Patented claim 1737), Yavapai Co., Arizona, USA
  • Old Reliable Mine (Reliable Mine; Calumet Mine; Clark-Scanlon group; Copper Creek Mining Co. property), Copper Creek, Copper Creek (Copper Creek Canyon), Bunker Hill District (Copper Creek District), Galiuro Mts, Pinal Co., Arizona, USA
  • Old Relief Canyon Mine, Relief Canyon, Antelope Springs District, Pershing Co., Nevada, USA
  • Old Rescue Nos. 1 - 4 Occurrence, Warren District (Marshall District), Idaho Co., Idaho, USA
  • Oldřichov, Tachov, Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Oldřichov (Ullersloh), Nejdek (Neudek), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Old Ripsey Mine (Ripsey Mine; Ripsey Canyon Mine; MS 1261a claim), Ripsey Wash, Ripsey Hill area, Ripsey District, Tortilla Mts, Pinal Co., Arizona, USA
  • Old River Road quarry, Lincoln, Providence Co., Rhode Island, USA
  • Old Riverside Stage Station area, Santo Domingo placers, Gila River, Maricopa Co., Arizona, USA
  • Old Rocky Occurrence, Niobrara Co., Wyoming, USA
  • Old Rose Chrome Deposit (Pennington Butte Chromite), Applegate District, Josephine Co., Oregon, USA
  • Old Route 7, Brookfield, Fairfield Co., Connecticut, USA
  • Oldroyd Calcite Quarry, Santaquin District, Wasatch Mts, Utah Co., Utah, USA
  • Old Rucker quarry, Ross Co., Ohio, USA
  • Old Sacramento Mine (Sacramento Mine; Jessie Lakin Claim), Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
  • Old Salaro Mine, Aztec District, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Old Sally Iron Mine, Forest of Dean, Gloucestershire, England, UK
  • Old Salt Lick Mine (Old Salt Lick Extension), Uravan District, Montrose Co., Colorado, USA
  • Old Salt Pit, Redmond Area, Sevier Co., Utah, USA
  • Old Sam Mine, Skeleton Creek District, Camas Co., Idaho, USA
  • Old Sandbed Mine (Old Sandbeds Mine), Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK
  • Old Saybrook, Middlesex Co., Connecticut, USA
  • Olds Claim Group, Washakie Basin, Moffat Co., Colorado, USA
  • Old Scythe-Stone quarry, North Smithfield, Providence Co., Rhode Island, USA
  • Old Senator Mine (Buena Vista Mine; Senator Mine), Bard, Potholes District, Chocolate Mts, Imperial Co., California, USA
  • Old Settler Mine & Tunnel, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Old Settler; Toledo Tunnel; Fisherman (Old Settler and Waterloo; Colorado and Toledo Tunnel), Montezuma Area, Summit Co., Colorado, USA
  • Old Shaft, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA
  • Old Shaft (MRDS - 10179656), Union Hill, Amherst Co., Virginia, USA
  • Old Shafts (MRDS - 10179236), Riverville, Amherst Co., Virginia, USA
  • Old Shaft, Spring Creek, Gunnison Co., Colorado, USA
  • Old Shale Pit, Lancaster Co., South Carolina, USA
  • Old Sheep Mountain Mine, Jackson Co., North Carolina, USA
  • Old Shell Bluff post office, Burke Co., Georgia, USA
  • Old Shell Road Quarry, Mobile Co., Alabama, USA
  • Old Sheperd Farm, Roanoke Co., Virginia, USA
  • Old Shepherds Mine (Wheal Rose), St Newlyn East, St Agnes District, Cornwall, England, UK
  • Old Shoe No. 1 Placer, Washington Gulch District (Finn District), Powell Co., Montana, USA
  • Old Shop Tunnel Talc Mine, Murray Co., Georgia, USA
  • Old Short Heirs Tract (E. B. Short-J. D. Aydelotte Tracts), Hickman Co., Tennessee, USA
  • Old Sierra, Mineral Co., Montana, USA
  • Old silver-lead pit, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA
  • Old Silver Mine, Cook Co., Minnesota, USA
  • Old Silver Mine, Lewis and Clark Co., Montana, USA
  • Old Slack Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old slope mine, Gypsum, Ottawa Co., Ohio, USA
  • Old Smith Mine, Wickenburg, Maricopa Co., Arizona, USA
  • Old Smokey Occurrence, Greenback District (Upper Grave Creek District), Josephine Co., Oregon, USA
  • Old Smokey prospect, Carrier, Western Border, Gunpowder District, Mount Isa - Cloncurry area, Queensland, Australia
  • Old Smokey Prospect, Waldo District, Josephine Co., Oregon, USA
  • Old Smoky Prospect, Tolovana District, Yukon-Koyukuk Borough, Alaska, USA
  • Old Soak Mine, Barry M. Goldwater Air Force Range, La Posa District (Wellton District; Wellton Hills District), Wellton Hills-Copper Mts, Yuma Co., Arizona, USA
  • Old Soapstone Quarry, Santa Catalina Island, Los Angeles Co., California, USA
  • Old Soda Creek School Pegmatite, Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA
  • Old Soldier Mine, Drum Valley, Visalia, Tulare Co., California, USA
  • Old Soldier mine (Lost Soldier mine), Churchill District, Lyon Co., Nevada, USA
  • Old Soldier Mine, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Old Soldier Mine, Pine Grove District, Blue Mts, Beaver Co., Utah, USA
  • Old Soldier No. 1 Prospect, Seafoam District, Custer Co., Idaho, USA
  • Old Soldier No. 2 Prospect, Seafoam District, Custer Co., Idaho, USA
  • Old Soldier Vein, Mill Canyon District, Socorro Co., New Mexico, USA
  • Old Spanish Mine (Enright; Deakin and Taylor), Shasta Co., California, USA
  • Old Spanish Mine, Pima Co., Arizona, USA
  • Olds Perry Occurrence, Washington Co., Idaho, USA
  • Old Spoon, Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
  • Old Springfield Butte Quarry, Springfield, Lane Co., Oregon, USA
  • Olds Quartz Mine (Vernon), El Dorado Co., California, USA
  • Old Squirrel Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old Stag Tunnel, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Old St. Anthony Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Old State Quarry, Benton Co., Oregon, USA
  • Old State Quarry, Gilliam Co., Oregon, USA
  • Old State Quarry Pit No. 8 (Old State Quarry; Old State Quarry/ Pit Number 34), Grundy Co., Tennessee, USA
  • Old Station Well area, Harts Ranges (Hartz Ranges), Northern Territory, Australia
  • Old St Daniel Mine, Giromagny, Territoire-de-Belfort, Franche-Comté, France
  • Old Stege Bates; Boreland & Ayer Central Construction Company property, Wildcat Canyon Regional Park, El Cerrito, Contra Costa Co., California, USA
  • Old Stephens Placer, El Dorado Co., California, USA
  • Old St. Georg Mine, Eisenberg, Goldhausen, Korbach, Hesse, Germany
  • Old Stiff Mine, Calaveras Co., California, USA
  • Old Stone Wall, Alice District, Clear Creek Co., Colorado, USA
  • Old Storwartz Mine, Storwartz mine field, Røros copper mines, Røros, Sør-Trøndelag, Norway
  • Old strip mine, Jackson township, Coshocton Co., Ohio, USA
  • Old strip mine, Langsville, Meigs Co., Ohio, USA
  • Old strip mine, Winfield road, Tuscarawas Co., Ohio, USA
  • Old Strontian Mine, Schoharie Township, Schoharie Co., New York, USA
  • Old Sumter Granite Quarry, Lancaster Co., South Carolina, USA
  • Old Susan Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA
  • Old Sutter Mill site, Coloma, El Dorado Co., California, USA
  • Old Sylvania mine (Stateline mine), Sylvania District, Esmeralda Co., Nevada, USA
  • Old Sylvester Arnold mine, Burrillville, Providence Co., Rhode Island, USA
  • Old Tavern Prospect, James River-Roanoke River Manganese District, Campbell Co., Virginia, USA
  • Old Telegraph Mine, Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Old Tem Piute mine, Tem Piute District, Lincoln Co., Nevada, USA
  • Old Tenabo placer, Bullion District, Lander Co., Nevada, USA
  • Old Tennessee Mine (School Property Mine), Ducktown District, Polk Co., Tennessee, USA
  • Old Timer Henry W. Seeman, Calaveras Co., California, USA
  • Old Timer Mine, Cababi District (Comobabi District), Comobabi Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
  • Old Timer Mine, Gunsight District (Meyer District), Gunsight Hills, Pima Co., Arizona, USA
  • Old Timer Mine, Inyo Co., California, USA
  • Old Timer Mine, Ivanhoe District, Elko Co., Nevada, USA
  • Old Timer Mine (La Paloma Mine; La Palomar Mine), Palmetto District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • Old Timer mine, New Placers District, Santa Fe Co., New Mexico, USA
  • Old Timer Mine (Old Timers Club Mine), Mariposa Co., California, USA
  • Old Timer Prospect, Beaverhead District (Dark Horse District), Beaverhead Co., Montana, USA
  • Old Timer prospect, Goldbanks District, Pershing Co., Nevada, USA
  • Old Timer Prospect (MRDS - 10266595), Lucile District (Sampson District), Idaho Co., Idaho, USA
  • Old Timer Prospect, Sheep Mountain District, Custer Co., Idaho, USA
  • Old Timer Prospects (MRDS - 10290070), Idaho Co., Idaho, USA
  • Old Timer Prospect, Wallowa Range District, Wallowa Co., Oregon, USA
  • Old Times Group, Eagle District, Shoshone Co., Idaho, USA
  • Old Times mine (Alliance mine), Pioche District, Lincoln Co., Nevada, USA
  • Old Tim Mo Occurrence, Pioneer District, Beaverhead Co., Montana, USA
  • Old Tinder Mine (Chicago-Virginia Tract), Gold-Pyrite Belt, Orange Co., Virginia, USA
  • Old Toledo Stone and Glass Sand quarry, Silica, Lucas Co., Ohio, USA
  • Old Tomboy, Telluride District, San Miguel Co., Colorado, USA
  • Old Toole Kaolin Mine, Aiken Co., South Carolina, USA
  • Old Tor Mine, Castleton, Derbyshire, England, UK
  • Old Tough Nut Prospect, Organ District, Doña Ana Co., New Mexico, USA
  • Oldtown, Grayson Co., Virginia, USA
  • Old Town Road Sandstone Quarry, Eau Claire Co., Wisconsin, USA
  • Old Town Shaft, Central City District, Gilpin Co., Colorado, USA
  • Old Towns Quarry, Middridge, Durham Coalfield, Co. Durham, England, UK
  • Old Treburgett Mine, St Teath, Area East of Wadebridge, Wadebridge District, Cornwall, England, UK
  • Old Triplett Placer, Baltimore Co., Maryland, USA
  • Old Tumbactoo Placer Mine, Yuba Co., California, USA
  • Old Tuolumne Group (Old Tuolomne Consolidated), Tuolumne Co., California, USA
  • Old Utah Mine (Judge Group; United Park City Mines), Park City District, Wasatch Mts, Wasatch Co., Utah, USA
  • Olduvai Gorge, Ngorongoro Conservation Area, Arusha Region, Tanzania
  • Old Van Buskirk farm, Russell, St. Lawrence Co., New York, USA
  • Old Verde Mine, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA
  • Old Vet and Eclipse Mine (Hossick & Brown Mine), Montana Peak, Humbug District, Klamath Mts, Siskiyou Co., California, USA
  • Old Virginia Brick Company No. 1 Shale Bank, Salem (City), Virginia, USA
  • Old Virginia Brick Company Pit, Roanoke Co., Virginia, USA
  • Old Visnes Mine, Visnes Copper Mines (Vigsnes), Karmøy, Rogaland, Norway
  • Old Vore Mine (Ellen Dip.; Golden Scepter; Chubb), New England Mills, Placer Co., California, USA
  • Old Washington, Calaveras Co., California, USA
  • Old Washington Quarry, Rhea Co., Tennessee, USA
  • Old Wasp Mine, Maricopa Co., Arizona, USA
  • Old Well Tin Mine Shaft, Kings Mountain District, Lincoln Co., North Carolina, USA
  • Old West Mine, Penhalonga (Penchalonga; Panhalonga), Mutare (Umtali) District, Manicaland, Zimbabwe
  • Old Whalen mine, Alpha District, Eureka Co., Nevada, USA
  • Old Wham Vein, Castleton, Derbyshire, England, UK
  • Old Wheeler Placer, El Dorado Co., California, USA
  • Old Whisky Mine (Whiskey Claim; Whiskey Lead), Calaveras Co., California, USA
  • Oldwick Quarry (Stavola Quarry), Tewksbury Township, Hunterdon Co., New Jersey, USA
  • Old Will Bentley Land Prospect, Coosa Co., Alabama, USA
  • Old Windkell Mine (Winskell No. 1 Mine), Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Old Windlass No. 1, Belmont District, Nye Co., Nevada, USA
  • Old Woman Anticline Occurrence, Niobrara Co., Wyoming, USA
  • Old Woman Creek, Altavista, Pittsylvania Co., Virginia, USA
  • Old Woman Gulch, San Domingo Wash, San Domingo District, Wickenburg Mts, Maricopa Co., Arizona, USA
  • Old Woman meteorite, Essex, Old Woman Mts, San Bernardino Co., California, USA
  • Old Woman Mine, Fleming District, Grant Co., New Mexico, USA
  • Old Woman Mts, San Bernardino Co., California, USA
  • Old Woman No. 9 Prospect, San Bernardino Co., California, USA
  • Old Woman Spring, San Bernardino Co., California, USA
  • Old Wood County Stone and Construction Co. Quarry, Portage, Wood Co., Ohio, USA
  • Old Wood Mine, Fairview, Georges Creek-Jimmie Creek District, Marion Co., Arkansas, USA
  • Old Woods Copper Mine, Alabama Copper Belt, Cleburne Co., Alabama, USA
  • Old Young Mine, Yancey Co., North Carolina, USA
  • Old Yuma Mine (Yuma Mine), Saguaro National Monument, Amole District, Tucson Mts, Pima Co., Arizona, USA
  • Öldzeyte Suma, Ömnögovi Aimag, Mongolia
  • Old Zionville, Berks Co., Pennsylvania, USA
  • Öldziyt, Dornogovi Aimag, Mongolia
  • Olea claims, Greenwood Peak area, Greenwood District, Mohave Co., Arizona, USA
  • O'Leary Occurrence, Lake Co., Oregon, USA
  • O'Leary Quarry, Rock Co., Wisconsin, USA
  • O'Leary's Prospect, Seven Devils District, Adams Co., Idaho, USA
  • Ole Bull, Monarch District, Chaffee Co., Colorado, USA
  • Ole Claims, Pumpkin Buttes District, Johnson Co., Wyoming, USA
  • Ole Creek Prospect, Eagle District, Southeast Fairbanks Borough, Alaska, USA
  • Ole Grendal Et, Yogo, Judith Basin Co., Montana, USA
  • Ole; Jay 1-3; Easy Money Mine, Chisana District, Southeast Fairbanks Borough, Alaska, USA
  • Olekma Branch Cu deposit, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • Olema, Marin Co., California, USA
  • Ole mine (Big Thing tunnel), Gold Butte District, Clark Co., Nevada, USA
  • Olenchik Island Pegmatite, Chupa Bay, Chupa pegmatite field, Northern Karelia, Karelia Republic, Northern Region, Russia
  • Olenevo Village, Transcarpathian Oblast' (Zakarpats'ka Oblast'; Zakarpattia), Ukraine
  • Olenii Creek (Olenii Ruchei; Oleny Ruchei), Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
  • Olenii (Oleny) Range, Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
  • Olenitsa River, White Sea Coast, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
  • Olentangy River, Delaware Co., Ohio, USA
  • Olentangy River Road, Worthington, Franklin Co., Ohio, USA
  • Ole Olsen Lode Occurrence, Pueblo District (Denio District), Harney Co., Oregon, USA
  • Ole Peterson Mine, Bruner District, Nye Co., Nevada, USA
  • Olesna, Hořovice (Horschowitz; Horowitz), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Olešnice, Letovice (Lettowitz), South Moravia Region, Moravia (Mähren; Maehren), Czech Republic
  • Oleson Prospect, Juneau District, Juneau Borough, Alaska, USA
  • Oleta, Amador Co., California, USA
  • Oleta Area Quartz occurrences, Oleta, Amador Co., California, USA
  • Oleta Mine (Smith-Vincent Mine), Fiddletown, Amador Co., California, USA
  • Olevatn fault line, Olevatn, Vang, Oppland, Norway
  • Olevatn, Vang, Oppland, Norway
  • Oley Township, Berks Co., Pennsylvania, USA
  • Oley Valley Quarry, Oley Township, Berks Co., Pennsylvania, USA
  • Olga adit, Schneidergraben, Kreuth, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria
  • Olga Bay, Olginsky District, Primorskiy Kray, Far-Eastern Region, Russia
  • Olga Kordon, Lane Co., Oregon, USA
  • Olga Marie (Olga Marie Moonbeam), Custer Co., Idaho, USA
  • Olga mine, Estación La Negra, Antofagasta Province, Antofagasta Region, Chile
  • Olga Mine, Herscheid, Lüdenscheid, Sauerland, North Rhine-Westphalia, Germany
  • Olga, Rustler Springs, Culberson Co., Texas, USA
  • Olga's rush, Coocoran Opal Fields, Lightning Ridge, Finch Co., New South Wales, Australia
  • Olgen Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA
  • Olgiasca-Malpensata (Piona), Colico, Lecco Province, Lombardy, Italy
  • Olginskoye Mine, Balkashinskoye Uranium ore field, Balkashino, Akmola Province (Aqmola Oblysy; Akmolinskaya Oblast'), Kazakhstan
  • Olginsky District, Primorskiy Kray, Far-Eastern Region, Russia
  • Ol'ginskyi, Kyren, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Olhio Prospect, Sand Gulch Area, Fremont Co., Colorado, USA
  • Olhos d'Água claim, Piauí valley, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Brazil
  • Olias, Málaga, Andalusia, Spain
  • Olifantsfontein Mine, Olifantsfontein (Annshope), Grootfontein District, Otjozondjupa Region, Namibia
  • Olifantsgeraamte Asbestos Mine, Sabie, Pilgrim's Rest District, Mpumalanga Province, South Africa
  • Olifantspoort Mine, Olifantspoort, Northwest Province, South Africa
  • Olifantspoort, Northwest Province, South Africa
  • Olim McCrary Mine, Caldwell Co., North Carolina, USA
  • Olimpiada Mine, Enisei Range (Yenisei Ridge; Enisei Ridge), Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russia
  • Olin Brothers Property, Converse Co., Wyoming, USA
  • Olinger deposit, Anza Valley, Anza, Cahuilla District, Riverside Co., California, USA
  • Olinghouse Canyon, Olinghouse District, Washoe Co., Nevada, USA
  • Olinghouse District, Washoe Co., Nevada, USA
  • Olin Mathieson Salt Deposit, Washington Co., Alabama, USA
  • Olin Quadrangle, Georgetown Co., South Carolina, USA
  • Olin Quarry, Saltville, Smyth Co., Virginia, USA
  • Olio Mine, Bear Valley Mining District, San Bernardino Co., California, USA
  • Oliva de la Frontera, Badajoz, Extremadura, Spain
  • Olive B. Occurrence (Slide Creek Group), Pearsoll Peak, Curry Co., Oregon, USA
  • Olive Branch Church Prospect, Henry Co., Tennessee, USA
  • Olive Butte (Big Elk), Greenhorn District, Grant Co., Oregon, USA
  • Olive Camp, Helmet Peak area, Pima Co., Arizona, USA
  • Olive Camp, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA
  • Olive Creek Mine, Tolovana District, Yukon-Koyukuk Borough, Alaska, USA
  • Olive Creek Mining Company Claims (Red Bell Claim; Red Bell No. 2 Claim; Black Bart Claim; Olive Creek Mining Company; Red Bell No. 3 Claim; Manhatten Claim), Alamo District, Grant Co., Oregon, USA
  • Olive Creek Occurrence (Twenty Thousand Gulch; Hill), Dixie District, Idaho Co., Idaho, USA
  • Olive Creek Placers (Twenty Thousand Gulch), Dixie District, Idaho Co., Idaho, USA
  • Olivehall Prospect, Hardin Co., Tennessee, USA
  • Olive Hill Quarry, Carter Co., Kentucky, USA
  • Olive, Idaho Springs District, Clear Creek Co., Colorado, USA
  • Oliveira do Hospital, Coimbra District, Portugal
  • Olive Lake Prospect, Granite District, Grant Co., Oregon, USA
  • Olive Mabel claim, Ophir Lade Property, Gainer Creek, Revelstoke Mining Division, British Columbia, Canada
  • Olive mine, Llano Co., Texas, USA
  • Olive Mine (Off Pointer Mine), Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • Olive Mine (Oliver), El Dorado Co., California, USA
  • Olive Mine, Shasta Co., California, USA
  • Olivenhain, San Diego Co., California, USA
  • Olive No. 5 prospect, Romur tungsten area, Fremont Co., Wyoming, USA
  • Olive, Orange Co., California, USA
  • Olive Quartz Mine, Hooperville, Deadwood District, Klamath Mts, Siskiyou Co., California, USA
  • Oliver Barite Mine, Del Rio District, Cocke Co., Tennessee, USA
  • Oliver claim (Lee claim), Washington Camp-Duquesne District, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • Oliver claim (Neglect claim; Oliver Consolidated claim), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
  • Oliver claims, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
  • Oliver Dam site, Columbus, Muscogee Co., Georgia, USA
  • Oliver & Holland Mine (Holland), Nevada Co., California, USA
  • Oliverian Station locality, Haverhill, Grafton Co., New Hampshire, USA
  • Oliver Limonite Mine, James River-Roanoke River Mn-Fe-Ba District, Campbell Co., Virginia, USA
  • Oliver Mine (Calumet and Arizona Mine), Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
  • Oliver Mine, Gastonia, Gaston Co., North Carolina, USA
  • Oliver Mine, Marquette iron range, Marquette Co., Michigan, USA
  • Oliver Mine No. 1 (Oliver No. 2 and 3), Gunnison Co., Colorado, USA
  • Oliver occurrence, Pilot Peak, Plumas Co., California, USA
  • Oliver Paipoonge Township, Thunder Bay District, Ontario, Canada
  • Oliver Placer, Tuolumne Co., California, USA
  • Oliver Prospect drill hole 02, Iron River, Menominee iron range, Iron Co., Michigan, USA
  • Oliver Prospect No. 1, Ridgeway, Henry Co., Virginia, USA
  • Oliver Prospect No. 2 (Mill Prospect), Ridgeway, Henry Co., Virginia, USA
  • Oliver Prospect, Park Co., Montana, USA
  • Oliver Prospect, Texas Creek Area, Fremont Co., Colorado, USA
  • Oliver Quarry (P. W. Ryan Sons; Inc.), Green Co., Wisconsin, USA
  • Oliver Road, Gads Hill, Upper Mersey Valley, Tasmania, Australia
  • Oliver Saddle Prospect, Tallahassee Creek District, Fremont Co., Colorado, USA
  • Olivers Phosphate Quarry, Noarlunga, South Mt Lofty Ranges (Adelaide Hills), Mt Lofty Ranges, South Australia, Australia
  • Oliver Twist Tunnel (Oliver Twist Shaft), Horseshoe Basin District, Park Co., Colorado, USA
  • Oliver Vanadium Mine (Canary Bird; Lone Star), Uravan District, San Miguel Co., Colorado, USA
  • Olive Springs Quarry, Scotts Valley, Santa Cruz Mts, Santa Cruz Co., California, USA
  • Olives prospect, Barool Creek, Drake Co., New South Wales, Australia
  • Olive Street pit, Ramona, Ramona District, San Diego Co., California, USA
  • Olivet Brick & Tile Company Clay Pit, Eaton Co., Michigan, USA
  • Olivette and Annette Mines (Olivette Mine; Olive Mine; New Olivette Mine; Corda Brothers group; Corda group), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA
  • Olivia Mine, Rosa de Castillo, Laguna Hansen, Mun. de Tecáte, Baja California (Baja California Norte; BC Norte), Mexico
  • Olivia mine, Sierra Bella Vista, Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile
  • Olivine Basalt pits, Yavapai Co., Arizona, USA
  • Olivine Deposit (MRDS - 10126709), Macon Co., North Carolina, USA
  • Olivine Hill Claim, Triangulation Point, Cypress Island, Skagit Co., Washington, USA
  • Olivone, Blenio Valley, Ticino (Tessin), Switzerland
  • Olivos Mine, Tlalpujahua, San pedro y San Pablo de Tlalpujahua District, Mun. de Tlalpujahua, Michoacan, Mexico
  • Oljeta Mine, Oljeto Mesa, Goulding, Monument Valley District (Monumental District), Monument Valley, San Juan Co., Utah, USA
  • Oljeto Mesa, Goulding, Monument Valley District (Monumental District), Monument Valley, San Juan Co., Utah, USA
  • Olkaria volcano, Hell’s Gate National Park, Rift Valley Province, Kenya
  • Olkar Mine, Kvikne, Tynset, Hedmark, Norway
  • Ol'khonskiye Vorota (Olkhon Gate) Strait, Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia
  • Olkhovka, Tyumenskaya Oblast', Polar Urals, Western-Siberian Region, Russia
  • Olkusz District, Małopolskie, Poland
  • Olkusz Mine, Olkusz, Olkusz District, Małopolskie, Poland
  • Olkusz, Olkusz District, Małopolskie, Poland
  • Ollagüe, El Loa Province, Antofagasta Region, Chile
  • Ollague meteorite, Ollague, Nor Lípez Province, Potosí Department, Bolivia
  • Ollague, Nor Lípez Province, Potosí Department, Bolivia
  • Ollague Volcano, Nor Lípez Province, Potosí Department, Bolivia
  • Ollala Occurrence, Riddle District, Klamath Co., Oregon, USA
  • Ollala Placers (Fisher Placer), Riddle District, Douglas Co., Oregon, USA
  • Olla, La Salle Parish, Louisiana, USA
  • Ollano, Mallare, Savona Province, Liguria, Italy
  • Olla Oatman shaft, Tom Reed vein, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Olla prospect, Chief Mountain, Pala, Pala District, San Diego Co., California, USA
  • Ollerías, Legutiano (Villarreal de Álava), Álava, Basque Country, Spain
  • Olleria, Valencia, Valencian Community, Spain
  • Ollie Belle Mine (Leekley; Kerwin; Curwin and Miller), Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Ollie Jordan Mine, Liberty, Swauk District, Kittitas Co., Washington, USA
  • Ollie, Keokuk Co., Iowa, USA
  • Ollie Reed, Leadville District, Lake Co., Colorado, USA
  • Olliergues, Puy-de-Dôme, Auvergne, France
  • Olliff Option Prospect, South Florida Phosphate District, Hardee Co., Florida, USA
  • Ollisdal Geo, Dunvegan, Duirinish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK
  • Ollivant's Pit, Douglas Co., Oregon, USA
  • Ollomont Mine, Ollomont, Valpelline, Aosta Valley, Italy
  • Olmeda, Catacocha, Paltas Canton, Loja Province, Ecuador
  • Olmedo, Sassari Province, Sardinia, Italy
  • Olmeta-di-Tuda, Bastia, Haute-Corse, Corsica, France
  • Olmsted Co., Minnesota, USA
  • Olmstedville, Essex Co., New York, USA
  • Ölmühlenberg Gypsum pit, Förste, Osterode, Lower Saxony, Germany
  • Olney Creek, Sultan, Sultan District, Snohomish Co., Washington, USA
  • Olney Extension, Mariposa Co., California, USA
  • Olney Quarry, Clatsop Co., Oregon, USA
  • O-Lo-Lim Mine, McCoy Lake, Deer Trail & Cedar Canyon Districts, Stevens Co., Washington, USA
  • Olomouc (Olmütz), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Olomučany, Blansko, South Moravia Region, Moravia (Mähren; Maehren), Czech Republic
  • Olon Ovoot Mine, Shara Hulasa Hiid, Ömnögovi Aimag, Mongolia
  • Olony Lode Mine, San Bernardino Co., California, USA
  • Olot, Garrotxa, Girona (Gerona), Catalonia, Spain
  • Olovena stola (Bleistollen), Zlaté Hory (Zuckmantel), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Oloví (Bleistadt), Sokolov (Falkenau an der Eger), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Olovienky, Malužiná, Liptovský Mikuláš Co., Žilina Region, Slovakia
  • Olov Jonsgruvan Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden
  • Olov Mine, Finnshytteberg ore field (Finnshytte), Nordmark district, Filipstad, Värmland, Sweden
  • Olowalu Valley, Maui, Maui Co., Hawaii, USA
  • Olperer, Zamser Grund (Zams valley), Ziller valley, North Tyrol, Tyrol, Austria
  • Olpe, Siegerland, North Rhine-Westphalia, Germany
  • Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria
  • Olsberg, Sauerland, North Rhine-Westphalia, Germany
  • Olsbrücken, Otterbach, Palatinate, Rhineland-Palatinate, Germany
  • Olsen and Baxter placer, Rescue, El Dorado Co., California, USA
  • Olsen and Donaldson Placer, El Dorado Co., California, USA
  • Olsen claim (New Diggings), China Point (1), Klamath Mts, Siskiyou Co., California, USA
  • Olsen Fraction Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Olsen (Golden City), Tuolumne Co., California, USA
  • Olsen Hill Placer Mine, Bestville, Klamath Mts, Siskiyou Co., California, USA
  • Olsen Mine, Jims Camp, Klamath Mts, Siskiyou Co., California, USA
  • Olsen Placer Mine, Trinity Co., California, USA
  • Olsen Prospect (Anvil Creek), Nome District, Nome Borough, Alaska, USA
  • Olsen Prospect, Washington District (Omega District), Nevada Co., California, USA
  • Olsen Switch, Saline Co., Arkansas, USA
  • Olsen & Switzer Occurrence, Lincoln Co., Montana, USA
  • Olsen, Tuolumne Co., California, USA
  • Olší, Žďár nad Sázavou, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic
  • Olson and Viette; Dominick Ledge Prospect, Prince William Sound District, Valdez-Cordova Borough, Alaska, USA
  • Olson Asbestos, Orofino District, Clearwater Co., Idaho, USA
  • Olson Claim, Big Four Mtn, Snohomish Co., Washington, USA
  • Olson Clay Deposit (Olson and Stanford Hi-Al Clay), Troy District, Latah Co., Idaho, USA
  • Olson Copper prospect (Olson's Copper prospect), Alamo District, Buckskin Mts, La Paz Co., Arizona, USA
  • Olson Dredge (Pioneer Dredging), Shasta District, Shasta Co., California, USA
  • Olson Dredge, Shasta Co., California, USA
  • Olson exploration, Mineral Hills, Menominee iron range, Iron Co., Michigan, USA
  • Olson Gulch District, Deer Lodge Co., Montana, USA
  • Olson Gulch, Olson Gulch District, Deer Lodge Co., Montana, USA
  • Olson Mine (Butler Brothers; Hanna Mining Company Agt), Mesabi Range, Itasca Co., Minnesota, USA
  • Olson Mine (Fitzgerald; Carlson Lease; Scott Rogers), Avon District (Mica Mountain District), Latah Co., Idaho, USA
  • Olson Nos. 1 & 2 Placer, Sierra Co., California, USA
  • Olson Quarry (George Wendtlandt; Inc.), Lafayette Co., Wisconsin, USA
  • Olson Quarry, Hancock Co., Illinois, USA
  • Olson Quarry, Lafayette Co., Wisconsin, USA
  • Olson Quarry (Wilber Lime Products; Inc.), Trempealeau Co., Wisconsin, USA
  • Olson's Placer, Conner Creek District, Baker Co., Oregon, USA
  • Olsovec, Hranice na Moravě, Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Olswick prospect (Giswick deposit), Santee, San Diego Co., California, USA
  • Olt Co., Romania
  • Olten, Solothurn, Switzerland
  • Oltre il Colle, Brembana Valley, Bergamo Province, Lombardy, Italy
  • Oltschiburg, Bielen, Balm, Hasli Valley, Bern, Switzerland
  • Olustee-Eldorado area, Jackson Co., Oklahoma, USA
  • Ølve Gold prospects, Ølve Mining Area, Kvinnherad, Hordaland, Norway
  • Ølve Mining Area, Kvinnherad, Hordaland, Norway
  • Olvera Ophite, Olvera, Cádiz, Andalusia, Spain
  • Olwyn Goch Shaft, Halkyn South mine (Halkyn Rhydymwyn mine), Halkyn (District) United Mines, Halkyn, Flintshire (Clwyd), Wales, UK
  • Olympia claim, Blinn claims, Culver Gulch, Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA
  • Olympia Claim, Fresno Co., California, USA
  • Olympiada Mine (Olympias Mine), Cassandra Mines, Chalkidiki Prefecture, Macedonia Department, Greece
  • Olympiad Mine (Comet Mine), Elk Creek-Coloma District, Missoula Co., Montana, USA
  • Olympia Mine, Banner Mine group (Banner Mine; Hughes Mine), Stevens Mountain, Papago District (Sierrita District), Sierrita Mts, Pima Co., Arizona, USA
  • Olympia Placer Mine, Shasta Co., California, USA
  • Olympia, Thurston Co., Washington, USA
  • Olympia Tin Prospect, Hill City District, Pennington Co., South Dakota, USA
  • Olympic & Allen Occurrence (Cleveland Fraction; Deep Creek Tungsten; Alaska Group), Seven Devils District, Adams Co., Idaho, USA
  • Olympic Creek Mine, Goodnews Bay District, Bethel Borough, Alaska, USA
  • Olympic Dam Mine, Roxby Downs, Andamooka Ranges - Lake Torrens area, South Australia, Australia
  • Olympic deposit, Bridge River area, Lillooet Mining Division, British Columbia, Canada
  • Olympic Ice Hockey Hall, Gjøvik, Oppland, Norway
  • Olympic Mine, Inyo Co., California, USA
  • Olympic Mine, Philipsburg District (Flint Creek District), Granite Co., Montana, USA
  • Olympic No. 2 Occurrence, Washington Gulch District (Finn District), Powell Co., Montana, USA
  • Olympic Occurrence (Mas24 1041), Circle Cliffs, Garfield Co., Utah, USA
  • Olympic (OMCO) Mine, Bell District, Mineral Co., Nevada, USA
  • Olympus Mine (Paradise), San Bernardino Co., California, USA
  • Omabu mine, Kawanishi City, Hyogo Prefecture, Kinki region, Honshu Island, Japan
  • Omagh, Co. Tyrone, Northern Ireland, UK
  • Omaha (2), Randolph Co., Alabama, USA
  • Omaha claim mine, Hartville Uplift District, Goshen Co., Wyoming, USA
  • Omaha Consolidated Mine (Lone Jack Mine; Homeward Bound Mine; Omaha vein), Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Omaha, Douglas Co., Nebraska, USA
  • Omaha - Grant Smelter (?slag locality), La Plata District (California District), La Plata Co., Colorado, USA
  • Omaha, Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
  • Omaha Mine, Cement Creek, Eureka District, San Juan Co., Colorado, USA
  • Omaha Mine, Groom Creek District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Omaha Mine, Quijotoa District, Quijotoa Mts, Pima Co., Arizona, USA
  • Omaha Mine, Upper Union District (Empire District), Clear Creek Co., Colorado, USA
  • Omaha Mine (Wilcox Mine; Omaha Iron Company; U S Steel Company et al), Cuyuna North Range, Crow Wing Co., Minnesota, USA
  • Omaha prospect, Caledonia Mine (Caladonian Mine), Kellogg, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • Omaha prospect, Champion Creek area, Custer Co., Idaho, USA
  • Omaha, Randolph Co., Alabama, USA
  • Omaha, Red Mountain District, San Juan Co., Colorado, USA
  • Omaha Soda Deposit, Natrona Co., Wyoming, USA
  • Omaheke Region, Namibia
  • Omai bauxite mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana
  • Omai gold mine, Omai, Upper Takutu-Upper Essequibo Region, Guyana
  • Omai, Upper Takutu-Upper Essequibo Region, Guyana
  • Omaki mine, Karumai, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Omak, Okanogan Co., Washington, USA
  • Oman
  • Oman Construction - Aripeka Mine, Hernando Co., Florida, USA
  • Oman Place, Stevens Co., Washington, USA
  • Oman prospect, Oman Place, Stevens Co., Washington, USA
  • Omapu Bay (Western Bay), Mayor Island (Tuhua), New Zealand
  • Omapyo, Namibia
  • O'Mara Mine (Old Soldier Mine), Canada de la Paloma, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
  • Omar Marie mine (Omer Marie mine), Manhattan District, Nye Co., Nevada, USA
  • Omar Prospect, Kiana District, Northwest Arctic Borough, Alaska, USA
  • Omarska mine, Ljubija ore field, Ljubija, Prijedor, Serb Republic, Bosnia and Herzegovina
  • Omaruru, Damaraland District, Kunene Region, Namibia
  • Omaruru District, Erongo Region, Namibia
  • Omaruru project, Omaruru, Damaraland District, Kunene Region, Namibia
  • Omar White Mine, Barbour Co., Alabama, USA
  • Ómassa, Miskolc, Bükk Mts., Borsod-Abaúj-Zemplén Co., Hungary
  • Omasuyos Province, La Paz Department, Bolivia
  • Oma Threatt Mine, Barbour Co., Alabama, USA
  • Omaue Mine, Kaokoveld Plateau, Kunene Region, Namibia
  • Ombella-M'Poko Prefecture, Central African Republic
  • Ombompo Claim, Doubtful Lake, Stehekin District, Chelan Co., Washington, USA
  • Ombretta Pass, Marmolada Group, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy
  • Ombretta Valley, Marmolada Group, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy
  • Omchak Au deposit, Omchak gold field, Kolyma River Basin, Magadanskaya Oblast', Far-Eastern Region, Russia
  • Omchak gold field, Kolyma River Basin, Magadanskaya Oblast', Far-Eastern Region, Russia
  • Omdal 1 Pegmatite, Omdal, Iveland, Aust-Agder, Norway
  • Omdal 2 Pegmatite, Omdal, Iveland, Aust-Agder, Norway
  • Omdal, Iveland, Aust-Agder, Norway
  • Omega Claim Group, Carbon Co., Wyoming, USA
  • Omega Creek; Alpha Creek Mine, Hot Springs District, Yukon-Koyukuk Borough, Alaska, USA
  • Omega Extension Mine, Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Omega Group, Unorganized District, Pennington Co., South Dakota, USA
  • Omega Lode Prospect, Poorman Group, Independence District, Sweet Grass Co., Montana, USA
  • Omega Mine, Jamestown, Jamestown District, Mother Lode belt, Tuolumne Co., California, USA
  • Omega Mine, Lead District, Lawrence Co., South Dakota, USA
  • Omega Mine (MS 19100; Patented Claim: Omega), Lower San Miguel District, San Miguel Co., Colorado, USA
  • Omega Mine (Omega Tunnel; Omega Extension), Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Omega Mine, San Bernardino Co., California, USA
  • Omega Mine, Sierra Co., California, USA
  • Omega Mine, Sinoquipe, Mun. de Arizpe, Sonora, Mexico
  • Omega Mine, Stemple District (Fool Hen District), Lewis and Clark Co., Montana, USA
  • Omega Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
  • Omega Placer Mine, Washington District (Omega District), Nevada Co., California, USA
  • Omega Prospect, Mazourka Rare II Area, Inyo Co., California, USA
  • Omega Quartz Mine, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Omegna, Verbano-Cusio-Ossola Province, Piedmont, Italy
  • Omehane, Otjinamewa (Otjionamewa), Brandberg Area, Erongo Region, Namibia
  • Omei Claim (White Gypsum Group), Riverside Co., California, USA
  • Omeljanjoff No. 2 Mine, Kitelskoe (Kitelsk; Kitelskoye) Sn-Zn deposit, Sortavala, Pitkyaranta (Pitkäranta) District, Ladoga Region, Karelia Republic, Northern Region, Russia
  • Omeljanjoff No. 3 Mine, Kitelskoe (Kitelsk; Kitelskoye) Sn-Zn deposit, Sortavala, Pitkyaranta (Pitkäranta) District, Ladoga Region, Karelia Republic, Northern Region, Russia
  • Omeljanjoff No. 4 Mine, Kitelskoe (Kitelsk; Kitelskoye) Sn-Zn deposit, Sortavala, Pitkyaranta (Pitkäranta) District, Ladoga Region, Karelia Republic, Northern Region, Russia
  • Omenica Mining Division, British Columbia, Canada
  • Omeo, East Gippsland Shire, Victoria, Australia
  • Omer, Arenac Co., Michigan, USA
  • Omeshorn, Lech, Montafon, Vorarlberg, Austria
  • O. M. Hampton Stone Quarry, Watauga Co., North Carolina, USA
  • Omi, Higashichikuma-gun, Nagano prefecture, Chubu region, Honshu Island, Japan
  • Omilak East Prospect, Council District, Nome Borough, Alaska, USA
  • Omilak Mine, Council District, Nome Borough, Alaska, USA
  • Omine Mine, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan
  • Omine Mts, Tenkawa village, Yoshino-gun, Nara Prefecture, Kinki Region, Honshu Island, Japan
  • Omiyadani, Shiga Prefecture, Kinki Region, Honshu Island, Japan
  • Omlenice, Kaplice, South Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Omlid (Åmli) mines, Morgedal, Kviteseid, Telemark, Norway
  • Ömnögovi Aimag, Mongolia
  • Omodani mine, Ono City, Fukui Prefecture, Chubu Region, Honshu Island, Japan
  • Omoe mine, Miyako City, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Omohundro Prospect, Gold-Pyrite Belt, Goochland Co., Virginia, USA
  • Omo Mine, El Dorado Co., California, USA
  • Omongwa salt pan, Kalahari desert, Omaheke Region, Namibia
  • Omori mine, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Chugoku region, Honshu Island, Japan
  • Omoto granite formation, Ishigaki Island, Okinawa Prefecture, Nansei Archipelago, Kyushu Region, Japan
  • Omskaya Oblast', Polar Urals, Western-Siberian Region, Russia
  • Omsted Building Stone Quarry, Omer, Arenac Co., Michigan, USA
  • Omsukchan, Ducat District, Kolyma River Basin, Magadanskaya Oblast', Far-Eastern Region, Russia
  • Omukai Mine, Kodo-mura, Kano-cho, Tsuno-gun, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan
  • Omura, Chichi Island (Chichijima), Chichijima Group, Ogasawara Islands, Tokyo Prefecture, Japan
  • Omuro, Ohito, Shizuoka prefecture, Chubu region, Honshu Island, Japan
  • Omusati Region, Namibia
  • Omutninskaya Pt-bearing placer, Omutnaya River, Polevskoi (Polevskoi Zavod), Sysert' District, Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia
  • Omya SAS Quarry (Omyat), Chepy, Marne, Champagne-Ardenne, France
  • Onadaga mine, Black Metals mine (Black Metal mine; Jackrabbit mine; Day mine), Bristol and Jackrabbit Districts, Lincoln Co., Nevada, USA
  • Onamalutu Valley, South Island, New Zealand
  • Onamo Tunnel, Rico District (Pioneer District), Dolores Co., Colorado, USA
  • Onaping Mine, Levack, Sudbury District, Ontario, Canada
  • Onaqui Mountains South Gypsum Quarries, Davis Knolls area, Tooele Co., Utah, USA
  • Onaway Mine, Potlatch Area, Latah Co., Idaho, USA
  • Onaway Quarry (Onaway Stone Company), Presque Isle Co., Michigan, USA
  • Onawe peninsula, South Island, New Zealand
  • On Claims (Claims: On Nos. 8-17), Embargo District (Embargo Creek District; Meyers Creek District), Saguache Co., Colorado, USA
  • Onderdendam, Groningen, Netherlands
  • Onderra Mine, Kaokoveld Plateau, Kunene Region, Namibia
  • Ondor Sum Fe deposit, Ondor Sum, Sonid Right Banner (Sunite Youqi), Xilin Gol League (Xilinguole Prefecture), Inner Mongolia Autonomous Region, China
  • Ondor Sum, Sonid Right Banner (Sunite Youqi), Xilin Gol League (Xilinguole Prefecture), Inner Mongolia Autonomous Region, China
  • Ondrasov, Moravský Beroun, Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Ondřejovice, Zlaté Hory (Zuckmantel), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Ondrick Quarry, Granby, Hampshire Co., Massachusetts, USA
  • Ondundu gold deposit, Erongo Region, Namibia
  • Ondurukurume (Ondumakorume) complex, Kalkfeld, Damaraland District, Kunene Region, Namibia
  • O'Neal mine (Treasure Vault mine), Lewis District, Lander Co., Nevada, USA
  • O'Neal Pit, Marion Co., Florida, USA
  • O'Neal Property, Crandall, Murray Co., Georgia, USA
  • O'Neal Quarry (Plymouth Quarry), Plymouth, Hancock Co., Illinois, USA
  • O'Neal Sandstone Quarry (Barnett Quarry), Amador Co., California, USA
  • One and Only One Prospect (One and Only One Claim), Mackay District (Alder Creek District; White Knob District), Custer Co., Idaho, USA
  • One and Three Quarters, Boulder Co. Tungsten District, Boulder Co., Colorado, USA
  • One and Two Gold Hill Mine, Fresno Co., California, USA
  • Oneco Exploration prospect, Hubbell, Houghton Co., Michigan, USA
  • One Day At Time/Easy Does It Mine (Bummer; Blue Range Placer Mine), West Yuba Rare II Area, Sierra Co., California, USA
  • One Dead Digger, Bob Marshall Wilderness, Flathead Co., Montana, USA
  • Onedin prospect, Koongie Park, Halls Creek, Western Australia, Australia
  • One Eyed Jack Nos. 1; 2 and 3 (Zoar), Low Divide, Low Divide District, Klamath Mts, Del Norte Co., California, USA
  • One group, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • One Horse Prospect, Ravalli Co., Montana, USA
  • One-Hundred claims, Emerson Peak, Warner Mts, Modoc Co., California, USA
  • One Hundred Dollar Mine, Tanners Peak, Liberty District, Klamath Mts, Siskiyou Co., California, USA
  • One-Hundred-Ten-Foot Adit Occurrence, Spring Creek District, Deep Creek Mts, Juab Co., Utah, USA
  • Oneida Co., Idaho, USA
  • Oneida Co., New York, USA
  • Oneida Co., Wisconsin, USA
  • Oneida Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Oneida Mine, Jackson, Jackson-Plymouth District, Amador Co., California, USA
  • Oneida Mine, LeRoy Mine group, Dos Cabezas, Dos Cabezas (Two Heads) District, Dos Cabezas Mts, Cochise Co., Arizona, USA
  • Oneida Mine, Mohave Co., Arizona, USA
  • Oneida Mine, Victoria, Ontonagon Co., Michigan, USA
  • Oneida Perlite Corporation Pit, Daniels Area, Oneida Co., Idaho, USA
  • Oneida Placer, Quigley Area, Power Co., Idaho, USA
  • Oneida Prospect (Oneida South Mine), Caribou City-Stump Creek Area MLA, Mount Pisgah District, Bonneville Co., Idaho, USA
  • Oneida Reserve PA-8 (Inland Steel Company; Pacific Isle Mining Company), Mesabi Range, St. Louis Co., Minnesota, USA
  • Oneida Tunnel, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • O'Neil Gulch Prospect (Rattlesnake Claim Group), North Fork Area, Lemhi Co., Idaho, USA
  • O'Neill Creek Pumice Deposit, Boulder Mountains Area, Powell Co., Montana, USA
  • Oneill Group Mines, Uravan District, San Miguel Co., Colorado, USA
  • O'Neill, Holt Co., Nebraska, USA
  • O'Neill & Hopkins Quarry, Jersey City, Bergen Hill, Hudson Co., New Jersey, USA
  • O'Neill Mine, Gatineau Park, Gatineau TE, Outaouais, Québec, Canada
  • O'Neill Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • O'Neill property, Gravelly Springs, Lauderdale Co., Alabama, USA
  • O'Neill Ranch placer, Granite Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USA
  • O'Neill's Claim, Dolores River, Bull Pen Canyon, Slick Rock District, San Miguel Co., Colorado, USA
  • O'Neills Copper Mine, Bingara, Murchison Co., New South Wales, Australia
  • Oneill Shafts Prospect (West End Field), Kern Co., California, USA
  • O'Neil mine, Charlestown, Sullivan Co., New Hampshire, USA
  • O'Neil Mine (Nail Mine), Lake Mombasha, Town of Monroe, Orange Co., New York, USA
  • O'Neil mine, Reese River District, Lander Co., Nevada, USA
  • O'Neil Place, Coastal Range, Mendocino Co., California, USA
  • O'Neil prospect, Elk Mountain District, Elko Co., Nevada, USA
  • O'Neil Quarry (Daniel E. O'Neil Quarry), Keene, Cheshire Co., New Hampshire, USA
  • Onek Mine, Keno Hill, Mayo Mining District, Yukon Territory, Canada
  • Onello meteorite, Bol'shoy Dolguchan River, Onello River basin, Aldan shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • One Mile Flat, Torrington, Clive Co., New South Wales, Australia
  • One & Nine tunnel (No. 1 and No. 9 pipes; Yates No. 7), Kingsgate, Gough Co., New South Wales, Australia
  • One No. 17-24 Prospect, Fremont Co., Wyoming, USA
  • Oneoneta Quarry, Blount Co., Alabama, USA
  • Oneonta, Blount Co., Alabama, USA
  • Oneonta, Boulder Co. Tungsten District, Boulder Co., Colorado, USA
  • Oneonta Mine, Unorganized District, Custer Co., South Dakota, USA
  • One Point Lode Occurrence, Custer District, Custer Co., South Dakota, USA
  • One Spot (Sailor Jack), El Dorado Co., California, USA
  • Oneta, Riso Valley, Seriana Valley, Bergamo Province, Lombardy, Italy
  • Onetha mine, Lead Belt, White Pine District, White Pine Co., Nevada, USA
  • One Thousand Acres Claim, Sister Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA
  • Oneto Mine, Calaveras Co., California, USA
  • One To Sixteen and Vulture Mine, El Dorado Co., California, USA
  • Onetto group, Mohave Co., Arizona, USA
  • Oneux Mines, Oneux, Theux, Verviers, Liège Province, Belgium
  • Oneux, Theux, Verviers, Liège Province, Belgium
  • Oney Lease Prospect, Kern Co., California, USA
  • Ongaroto Road, Atiamuri, Taupo, North Island, New Zealand
  • Ongeltjern, Øyna, Froland, Aust-Agder, Norway
  • Ongjin mine (Onjin mine; Ongiin mine), North Korea
  • Ongniud Banner (Wengniute Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China
  • Ongole, Guntur District, Andhra Pradesh, India
  • Ongón district, Pataz Province, La Libertad Department, Peru
  • Ongoveyuk River Occurrence, Bering Sea District, Nome Borough, Alaska, USA
  • Ongrée, Le Perron, Liège Province, Belgium
  • Oni District, Racha-Lochkhumi-Kvemo Svaneti Region, Georgia
  • Onigajo, Osemachi, Tadano, Koriyama, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
  • Oniishi-machi (Onishi-machi), Tano-gun, Gunma Prefecture, Kanto Region, Honshu Island, Japan
  • Onikobe geothermal field, Miyagi Prefecture, Tohoku Region, Honshu Island, Japan
  • Oni-no-Iwaya cave, Hiroshima prefecture, Chugoku region, Honshu Island, Japan
  • Onion Creek, Galena Farm Road, Stevens Co., Washington, USA
  • Onion Creek Gypsum Deposit, Grand Co., Utah, USA
  • Onion Creek (La Sal Mountains), Grand Co., Utah, USA
  • Onion Creek Placer, El Dorado Co., California, USA
  • Onion Falls Copper (Coons Copper-Gold Ledge; Hamlin Prospect), Pickett Creek District, Josephine Co., Oregon, USA
  • Onion Gulch Placers, Granite District, Grant Co., Oregon, USA
  • Onion Mountain Nickel Occurrence (Pack Trail; Cobalt Blue), Pickett Creek District, Josephine Co., Oregon, USA
  • Onion Mountain, Pecwan (Pekwan), Klamath Mts, Humboldt Co., California, USA
  • Onion Mountain prospect, Onion Mountain, Pecwan (Pekwan), Klamath Mts, Humboldt Co., California, USA
  • Onion Mountain Quarry, Josephine Co., Oregon, USA
  • Onion Mountain Quarry (Onion Mtn Pit), Josephine Co., Oregon, USA
  • Onion River Falls, Cook Co., Minnesota, USA
  • Onion Springs No. 1, Gold Hill District, Jackson Co., Oregon, USA
  • Onion Valley area, Plumas Co., California, USA
  • Onion Valley Creek placer prospect, Fowler Peak, Plumas Co., California, USA
  • Onion Valley Mine (Mayflower Mine), Pilot Peak, Plumas Co., California, USA
  • Onixeddu Mt., Gonnesa, Carbonia-Iglesias Province, Sardinia, Italy
  • Onjong-ni (Chjong-ni), Oegumgang-myon, Kosong-gun, Kangwon Province, North Korea
  • Onley Clay Deposit (Barth Clay), Clatsop Co., Oregon, USA
  • Only Chance (Choice) claim, Elizabethtown District, Colfax Co., New Mexico, USA
  • Only Chance, Leadville District, Lake Co., Colorado, USA
  • Only Chance mine (Geneva mine), Cherry Creek District, White Pine Co., Nevada, USA
  • Only Chance Placer Mine, La Porte, La Porte District, Plumas Co., California, USA
  • Only Hope Placer Mine, Gunsight Peak, Humbug District, Klamath Mts, Siskiyou Co., California, USA
  • Only Occurrences, McGrath District, Bethel Borough, Alaska, USA
  • Only saltpeter cave, Hickman Co., Tennessee, USA
  • Onnenai, Hokkaido, Japan
  • Önnestad, Kristianstad, Skåne, Sweden
  • Ono City, Fukui Prefecture, Chubu Region, Honshu Island, Japan
  • Ono-gun, Oita Prefecture, Kyushu Region, Japan
  • Onohana, Nagano Prefecture, Chubu Region, Honshu Island, Japan
  • Ono, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Onolite prospect (Onolite Mine), Weldon District, Kern Co., California, USA
  • Ono mine, Ono, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Onondaga Co., New York, USA
  • Onondaga drill cores, Ontonagon Co., Michigan, USA
  • Onondaga, Georgetown District, Clear Creek Co., Colorado, USA
  • Onondaga Mine (Pitt Pac Company), Mesabi Range, St. Louis Co., Minnesota, USA
  • Onondaga mine, Safford District, Eureka Co., Nevada, USA
  • Onondago Prospect, Amador Co., California, USA
  • Onon river, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Onot river, Eastern Sayan, Sayan Mts, Southern Siberia, Russia
  • Onoyama gold mine, Kagoshima Prefecture, Kyushu Region, Japan
  • Onseepkans farm, Northern Cape Province, South Africa
  • Onsen-cho, Minoo, Osaka Prefecture, Kinki Region, Honshu Island, Japan
  • Onsernone Valley, Centovalli, Ticino (Tessin), Switzerland
  • Onslow Co., North Carolina, USA
  • Onslow Quarry, Richlands, Onslow Co., North Carolina, USA
  • Onslow, Western Australia, Australia
  • Onslunda gruva, Onslunda, Tomelilla, Skåne, Sweden
  • Onslunda, Tomelilla, Skåne, Sweden
  • Ontario, Canada
  • Ontario, Central City District, Gilpin Co., Colorado, USA
  • Ontario claim, Breece Hill, Leadville, Leadville District, Lake Co., Colorado, USA
  • Ontario Claim, Goose Lake, Park Co., Montana, USA
  • Ontario Claim Group Mine, Silver City District (Carson District), Owyhee Co., Idaho, USA
  • Ontario Claim, Negro Creek, Negro Creek District, Blewett District (Peshastin District), Chelan Co., Washington, USA
  • Ontario claims, Boyle Mountain, Warm Springs District (Warm Springs Creek District), Blaine Co., Idaho, USA
  • Ontario Claim, Steeple Rock District, Grant Co., New Mexico, USA
  • Ontario Co., New York, USA
  • Ontario Creek Placer (Eddy Claim), Ontario District (Elliston District), Powell Co., Montana, USA
  • Ontario District (Elliston District), Powell Co., Montana, USA
  • Ontario, Dixie District, Idaho Co., Idaho, USA
  • Ontario Drain Tunnel No. 2 Portal (Park-Utah Group), Blue Ledge District (Bald Mountain), Wasatch Co., Utah, USA
  • Ontario Gem Mine, Pearl Station, Thunder Bay District, Ontario, Canada
  • Ontario; Key West; Boss; Gold Flake; Fair Fountain; Bondholder, Farncomb Hill, French Gulch, Breckenridge District, Summit Co., Colorado, USA
  • Ontario Lodes Mine, El Dorado Co., California, USA
  • Ontario Mine, Georgetown District (Southern Cross District; Cable District), Deer Lodge Co., Montana, USA
  • Ontario Mine, Green Mountain, Leadville District, Lake Co., Colorado, USA
  • Ontario Mine, Kellogg, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • Ontario Mine, Ontario District (Elliston District), Powell Co., Montana, USA
  • Ontario Mine, Ontario, Ontario Township, Wayne Co., New York, USA
  • Ontario Mine, Park City District (Uinta District), Wasatch Mts, Summit Co., Utah, USA
  • Ontario Minerals Claims, Inyo Co., California, USA
  • Ontario Mine, Silver Lake District, Wasatch Mts, Utah Co., Utah, USA
  • Ontario Mine, Turquoise District (Courtland-Gleeson District), Dragoon Mts, Cochise Co., Arizona, USA
  • Ontario No. 1 Drain Tunnel Portal (Ontario Group), Ontario Mine, Park City District (Uinta District), Wasatch Mts, Summit Co., Utah, USA
  • Ontario No. 2 Shaft, Ontario Mine, Park City District (Uinta District), Wasatch Mts, Summit Co., Utah, USA
  • Ontario No. 3 Shaft, Ontario Mine, Park City District (Uinta District), Wasatch Mts, Summit Co., Utah, USA
  • Ontario Peak, San Gabriel Mts, San Bernardino Co., California, USA
  • Ontario & Pearl Groups, Malheur Co., Oregon, USA
  • Ontario Reserve P-11, Mesabi Range, St. Louis Co., Minnesota, USA
  • Ontario Syndicate Mine, Homer, Mono Co., California, USA
  • Ontario Talc Company Mine, Fullerville, St. Lawrence Co., New York, USA
  • Ontario Township, Wayne Co., New York, USA
  • Ontario, Upper Union District (Empire District), Clear Creek Co., Colorado, USA
  • Ontko Occurrence, Howard District (Ochoco District; Bolivar District), Crook Co., Oregon, USA
  • Ontonagon Boulder, Ontonagon River, Ontonagon Co., Michigan, USA
  • Ontonagon Co., Michigan, USA
  • Ontonagon Mine (1), Rockland, Ontonagon Co., Michigan, USA
  • Ontonagon Mine (2), Victoria, Ontonagon Co., Michigan, USA
  • Ontonagon River, Ontonagon Co., Michigan, USA
  • Ontonagon Silver Mine, Silver City, Ontonagon Co., Michigan, USA
  • Ontop Mine, Mount Ararat, Plumas Co., California, USA
  • Önundarfjorður, Vestur-Isafjarðarsýsla, Iceland
  • Onverwacht Mine, Lydenburg District, Eastern Bushveld Complex, Mpumalanga Province, South Africa
  • Onward Claim, Riverside Co., California, USA
  • Onway Lake, Raymond, Rockingham Co., New Hampshire, USA
  • Onyx Ace Hill quarry, Plattsmouth, Cass Co., Nebraska, USA
  • Onyx Cave (Cave Hill deposit), Greaterville District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Onyx Hill Quarry, Rockingham Co., Virginia, USA
  • Onyx Mine, Mariposa Co., California, USA
  • Onyx Mine, San Bernardino Co., California, USA
  • Onyx mine, Upper Mississippi Valley District, Grant Co., Wisconsin, USA
  • Onyx Nos. 1 & 2 Prospect, Tulare Co., California, USA
  • Onyx Quarry, Yavapai Co., Arizona, USA
  • Onyx Ranch, Salt Lake Co., Utah, USA
  • Onzon river alluvials, La Tour-en-Jarez, Saint-Etienne, Loire, Rhône-Alpes, France
  • Oofty Goofty Mine, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
  • Oohoo Mine, Caballo Mountain District, Sierra Co., New Mexico, USA
  • Ookueyama, Kitagawa, Nobeoka City, Miyazaki prefecture, Kyushu Region, Japan
  • Oolite Rock Limestone Quarry, Miami-Dade Co., Florida, USA
  • Ooloo Mine (Rieck's), Mount Freeling homestead, North Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Ooltewah Road, Ringgold, Catoosa Co., Georgia, USA
  • O. O. Mine (Rose Hill No. 2), Calaveras Co., California, USA
  • Oom Paul Mine, Lelande, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • Oom Paul Mine, Mariposa Co., California, USA
  • Oomph Claims (Lindner Prospect), Inyo Co., California, USA
  • Oonah Mine, Zeehan, Zeehan district, Tasmania, Australia
  • Oonara (Ohnara), Sambagawa, Oniishi-machi (Onishi-machi), Tano-gun, Gunma Prefecture, Kanto Region, Honshu Island, Japan
  • Oostanaula Creek Area, McMinn Co., Tennessee, USA
  • Oostanaula River, Gordon Co., Georgia, USA
  • Oos valley, Baden-Baden, Black Forest, Baden-Württemberg, Germany
  • Ootmarsum, Overijssel, Netherlands
  • Ootsa Lake, Omenica Mining Division, British Columbia, Canada
  • Opache Cu deposit, Calama, El Loa Province, Antofagasta Region, Chile
  • Opal Butte, Morrow Co., Oregon, USA
  • Opal Canyon, Inyo Mts (Inyo Range), Inyo Co., California, USA
  • Opal Claims, Pumpkin Buttes District, Johnson Co., Wyoming, USA
  • Opal Creek Occurrence, Ochoco Creek, Jefferson Co., Oregon, USA
  • Opal Creek Placer, Seafoam District, Custer Co., Idaho, USA
  • Opalene Gulch, Givens Springs Area, Owyhee Co., Idaho, USA
  • Opalescent Quarry (Cold Spring Granite Co), Stearns Co., Minnesota, USA
  • Opal Extension and South Opal Group Prospect (New Joshua), Kern Co., California, USA
  • Opal Hill claims, Contact District, Elko Co., Nevada, USA
  • Opal Hill, Fruita, Mesa Co., Colorado, USA
  • Opal Hill, Mesa Co., Colorado, USA
  • Opal Hill Mine, Mule Mts, Riverside Co., California, USA
  • Opaline, Owyhee Co., Idaho, USA
  • Opaline silica quarry of Basic Inc., Gabbs District, Nye Co., Nevada, USA
  • Opalite District, Humboldt Co., Nevada, USA
  • Opalite District (McDermitt District), Malheur Co., Oregon, USA
  • Opalite Mine, Opalite District, Humboldt Co., Nevada, USA
  • Opalite Mine, Opalite District (McDermitt District), Malheur Co., Oregon, USA
  • Opalite Mine (Western Minerals Company), Quartz Mountain, Lake Co., Oregon, USA
  • Opal Lose, Shaft 371, Schlema-Hartenstein District, Erzgebirge, Saxony, Germany
  • Opal Mine, Granite and North Granite Districts, Mineral Range, Beaver Co., Utah, USA
  • Opal Mine (San Pedro Nos. 1-6 Opal Mine), Waucoba District, Mazourka Roadless Area Review & Evaluation (RARE) II Area, Inyo Co., California, USA
  • Opal Mountain Clinoptilolite prospect, Opal Mountain, San Bernardino Co., California, USA
  • Opal Mountain Occurrence, Ochoco Creek, Jefferson Co., Oregon, USA
  • Opal Mountains Agate Field prospect (Black Mountain), Opal Mountain, San Bernardino Co., California, USA
  • Opal Mountain, San Bernardino Co., California, USA
  • Opal occurrence, Nioro du Sahel Circle, Kayes Region, Mali
  • Opal; Opal Annex claims (White Hill No. 1), Huntington Creek District, Elko Co., Nevada, USA
  • Opal Prospect (MRDS - 10141173), San Bernardino Co., California, USA
  • Opal prospect (Opal Mine), Piute Mountain District, Kern Co., California, USA
  • Opal Prospect T. 16 N. (MRDS - 10164802), San Bernardino Co., California, USA
  • Opal Prospect, Willow Creek District, Matanuska-Susitna Borough, Alaska, USA
  • Opal Queen group, Virgin Valley District, Humboldt Co., Nevada, USA
  • Opal Spring, Jefferson Co., Oregon, USA
  • Opal; Tiger Mining Co. Mine, Nelchina District, Valdez-Cordova Borough, Alaska, USA
  • Opalton, Winton Shire, Queensland, Australia
  • Opatów District, Świętokrzyskie Mts (Holy Cross Mts), Świętokrzyskie, Poland
  • Opava, Moravia-Silesia Region, Moravia (Mähren; Maehren), Czech Republic
  • O. P. David Mine, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Opeche formation, Butte Co., South Dakota, USA
  • Opeche formation, Harding Co., South Dakota, USA
  • Opec pits (de Souza pit), B-Block Mine, Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania
  • Opegoi, Weitchpec District, Klamath Mts, Humboldt Co., California, USA
  • Opelika Quartzite Quarry, Lee Co., Alabama, USA
  • Opemisca deposits, Chapais, Nord-du-Québec, Québec, Canada
  • Open Cut Mine, Pumpkin Flat, Lightning Ridge, Finch Co., New South Wales, Australia
  • Open Cut (MRDS - 10240096), Uravan District, Montrose Co., Colorado, USA
  • Opening No. 10 Prospect, Martin Co., Indiana, USA
  • Opening No. 11 Prospect, Martin Co., Indiana, USA
  • Opening No. 12 Prospect, Martin Co., Indiana, USA
  • Opening No. 13 Prospect, Martin Co., Indiana, USA
  • Opening No. 14 Prospect, Martin Co., Indiana, USA
  • Opening No. 15 Prospect, Martin Co., Indiana, USA
  • Opening No. 16 Prospect, Martin Co., Indiana, USA
  • Opening No. 17 Prospect, Martin Co., Indiana, USA
  • Opening No. 18 Prospect, Martin Co., Indiana, USA
  • Opening No. 19 Prospect, Martin Co., Indiana, USA
  • Opening No. 20 Prospect, Martin Co., Indiana, USA
  • Opening No. 22 Prospect, Martin Co., Indiana, USA
  • Opening No. 23 Prospect, Martin Co., Indiana, USA
  • Opening No. 4 Prospect, Martin Co., Indiana, USA
  • Opening No. 5 Prospect, Martin Co., Indiana, USA
  • Opening No. 6 Prospect, Martin Co., Indiana, USA
  • Opening No. 7 Prospect, Martin Co., Indiana, USA
  • Opening No. 8 Prospect, Martin Co., Indiana, USA
  • Opening No. 9 Prospect, Martin Co., Indiana, USA
  • Open Pit Mine Otherwise Unidentified (MRDS - 10263024), Tuolumne Co., California, USA
  • Open Pit Section 28-33 3-10, Converse Co., Wyoming, USA
  • Open Pit Sections 28 and 33 (Bill Smith Open Pit), Converse Co., Wyoming, USA
  • Opera Box Mine (Aztec Mine), Gypsum Valley, Montrose Co., Colorado, USA
  • Operator Consolidated Mine (Valverde Mine; Phoenix Mine; Operator Divide Mine; Styx claims), Randsburg, Rand District, Kern Co., California, USA
  • Opex Prospect (Empire Mines Company), Tintic District, East Tintic Mts, Juab Co., Utah, USA
  • Ophara Tank Mine, Yancowinna Co., New South Wales, Australia
  • Ophelia Claim, Organ District, Doña Ana Co., New Mexico, USA
  • Ophelia, Edgemont Uranium District, Fall River Co., South Dakota, USA
  • Ophelia Tunnel (Gold Exploration; Moffat Tunnel), Cripple Creek District, Teller Co., Colorado, USA
  • Ophir; Argo, Idaho Springs District, Clear Creek Co., Colorado, USA
  • Ophir Canyon Prospect, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Canyon, Twin River District, Nye Co., Nevada, USA
  • Ophir Cave, Ophir District, Lewis and Clark Co., Montana, USA
  • Ophir Claim, Rose Mountain District (Gold Creek District), Granite Co., Montana, USA
  • Ophir Coalition Mine (Montana Mine), Ophir Hill area, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Consolidated Mine, Calaveras Co., California, USA
  • Ophir Consolidated; Red Hill & Woodstock Extension Mine, Calaveras Co., California, USA
  • Ophir Creek Claims, Ophir Creek District, Custer Co., Colorado, USA
  • Ophir Creek District, Custer Co., Colorado, USA
  • Ophir Creek, Lewis and Clark Co., Montana, USA
  • Ophir Creek Mine (ARDF - BN099), Council District, Nome Borough, Alaska, USA
  • Ophir Creek Mine (ARDF - SO053), Council District, Nome Borough, Alaska, USA
  • Ophir Creek Mine, Ruby District, Yukon-Koyukuk Borough, Alaska, USA
  • Ophir Creek Mines, Innoko District, Yukon-Koyukuk Borough, Alaska, USA
  • Ophir Creek Mine, Tolovana District, Yukon-Koyukuk Borough, Alaska, USA
  • Ophir Creek, Ophir District, Powell Co., Montana, USA
  • Ophir Creek placer ground (Au; Ag), Twin River District, Nye Co., Nevada, USA
  • Ophir Creek Prospect, Aniak District, Bethel Borough, Alaska, USA
  • Ophir, Cripple Creek District, Teller Co., Colorado, USA
  • Ophir District (Auburn District), Placer Co., California, USA
  • Ophir District, Lewis and Clark Co., Montana, USA
  • Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir District, Powell Co., Montana, USA
  • Ophir District, San Miguel Co., Colorado, USA
  • Ophir Duncan Hill, Ophir District (Auburn District), Placer Co., California, USA
  • Ophir Group, Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Ophir Gulch, Greaterville placer deposits, Greaterville, Greaterville District, Santa Rita Mts, Pima Co., Arizona, USA
  • Ophir Gulch placers, Ophir District, Powell Co., Montana, USA
  • Ophir; Hartford; Chilkat; Selkirk; Acropolis Prospect, Juneau District, Juneau Borough, Alaska, USA
  • Ophir Hill area, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Hill Consolidated Mine, Ophir Hill area, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Hill (Ophir), Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Iron Springs, Ophir District, San Miguel Co., Colorado, USA
  • Ophir Lode (Wickieup Creek), Idaho Co., Idaho, USA
  • Ophir Mine (Arizona Ophir Mine), Old Glory Mine group, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Ophir Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Ophir Mine, Central City District, Gilpin Co., Colorado, USA
  • Ophir Mine, Comstock Lode, Comstock District, Storey Co., Nevada, USA
  • Ophir Mine, El Dorado Co., California, USA
  • Ophir Mine, Empire District, Empire Mts, Pima Co., Arizona, USA
  • Ophir Mine (Fair Forest Mine; Thompson Mine), Union Co., South Carolina, USA
  • Ophir Mine, Horseshoe Basin District, Park Co., Colorado, USA
  • Ophir Mine, Mariposa Co., California, USA
  • Ophir Mine, Mineral Hill District, Blaine Co., Idaho, USA
  • Ophir mine, Northern Territory, Australia
  • Ophir Mine (Orpha Mine), Castle Dome District, Castle Dome Mts, Yuma Co., Arizona, USA
  • Ophir Mine, Quartzburg District (Comer District), Grant Co., Oregon, USA
  • Ophir Mine (Reservior and Ophir Patents), Ophir District, Powell Co., Montana, USA
  • Ophir Mine, Rocky Bar District, Elmore Co., Idaho, USA
  • Ophir Mine, Sierra Co., California, USA
  • Ophir Mine, Slate Range, San Bernardino Co., California, USA
  • Ophir Mine, Soulsbyville, Soulsbyville & Confidence District, East Belt area, Tuolumne Co., California, USA
  • Ophir Mine, Susanville District (Comer District), Grant Co., Oregon, USA
  • Ophir mine, Tybo District, Nye Co., Nevada, USA
  • Ophir Mine (Uncle Sam Mine), Trona, Slate Range, Inyo Co., California, USA
  • Ophir, Montgomery Co., North Carolina, USA
  • Ophir Mountain Mine, Darwin, Darwin District, Inyo Co., California, USA
  • Ophir Mountain Mine, Ophir Mountain, Murray District (Summit District), Shoshone Co., Idaho, USA
  • Ophir Mountain, Murray District (Summit District), Shoshone Co., Idaho, USA
  • Ophir, Nederland District, Boulder Co., Colorado, USA
  • Ophir (Nucla; Golden Gate; Red Sox; Cliff Dweller; Blackrock; Fourth of July; Worchester), Uravan District, Montrose Co., Colorado, USA
  • Ophir Occurrence, Bohemia District (Champion District), Lane Co., Oregon, USA
  • Ophir Occurrence, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir Occurrence (Valley Queen), Bald Mountain District, Grant Co., Oregon, USA
  • Ophir, Ophir District (Auburn District), Placer Co., California, USA
  • Ophir, Ophir District, San Miguel Co., Colorado, USA
  • Ophir Patented claim 266, Yavapai Co., Arizona, USA
  • Ophir Placer (Elizabeth Beal), Calaveras Co., California, USA
  • Ophir Placer Mine, Yuba Co., California, USA
  • Ophir Placer prospect, Soulsbyville, Soulsbyville & Confidence District, East Belt area, Tuolumne Co., California, USA
  • Ophir prospect, Greaterville District, Santa Rita Mts, Pima Co., Arizona, USA
  • Ophir prospect, Plaskett, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • Ophir Queen, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir-Rush Valley, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
  • Ophir shaft, Union Hill, Reese River District, Lander Co., Nevada, USA
  • Ophir Tungsten area (Ophir prospects; Ophir claim), Wabayuma Peak Wilderness Area, Ophir District, Hualapai (Hualpai) Mts, Mohave Co., Arizona, USA
  • Ophir Tunnel (1), Ophir District, San Miguel Co., Colorado, USA
  • Ophir Tunnel (2), Telluride District, San Miguel Co., Colorado, USA
  • Ophir, Tuolumne Co., California, USA
  • Ophir Valley Occurrence (New Dominion; Nevada Gulch; Silver Tip Lower Yellow Jacket; Chapman Gulch), Ophir District, San Miguel Co., Colorado, USA
  • Ophir, Wellington Co., New South Wales, Australia
  • Ophite outcrop, Saint Etienne-de-Baigorry, Pyrénées-Atlantiques, Aquitaine, France
  • Ophite quarries, Lourdes, Hautes-Pyrénées, Midi-Pyrénées, France
  • Ophite Quarrys, Salies-du-Salat, Haute-Garonne, Midi-Pyrénées, France
  • Opie Quarry, Lafayette Co., Wisconsin, USA
  • Opinicon Lake Mine, Opinicon Lake, Bedford Township, Frontenac Co., Ontario, Canada
  • Opinicon Lake, Storrington Township, Frontenac Co., Ontario, Canada
  • Opinicon Rock Lake Mine, Opinicon Lake, Storrington Township, Frontenac Co., Ontario, Canada
  • Oploca mine, Atocha-Quechisla District, Sud Chichas Province, Potosí Department, Bolivia
  • Oploca Vein System (Oploca mine), Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy, Argentina
  • Oplustilberg, Petrov nad Desnou (Petersdorf an der Tess), Šumperk (Mährisch Schönberg), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Oplustilberg, Sobotín (Zöptau; Zoeptau), Šumperk (Mährisch Schönberg), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • O. P. Mine (Proxham Park Mine), Mount Kelly, Gunpowder District, Mount Isa - Cloncurry area, Queensland, Australia
  • Opo Bay (South East Bay), Mayor Island (Tuhua), New Zealand
  • Opohonga Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA
  • Opohonga Stope, Gold Chain Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA
  • Opole, Opolskie, Poland
  • Opolskie, Poland
  • Opononi, Northland, North Island, New Zealand
  • OP orebody, Cluff Lake Uranium Mine, Saskatchewan, Canada
  • Opornyi pegmatite, Zunshibir' valley, Ermakovskoe Be Deposit, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Opositora Mine, La Campana District, Quillota Province, Valparaíso Region, Chile
  • Opossum Creek, Salem township, Monroe Co., Ohio, USA
  • Opouteke-Pakotai area, North Island, New Zealand
  • Opouteke Range, Pakotai, North Island, New Zealand
  • Oppdal, Sør-Trøndelag, Norway
  • Oppenau, Oberkirch, Black Forest, Baden-Württemberg, Germany
  • Oppenberg, Niedere Tauern, Styria, Austria
  • Oppermann limestone quarry, Emmenhausen, Göttingen, Lower Saxony, Germany
  • Oppie Quarry (Oscar Zwolaney Lime & Gravel Company), Lafayette Co., Wisconsin, USA
  • Oppland, Norway
  • Oppljodvatnet, Stryn, Sogn og Fjordane, Norway
  • Oppmanna, Kristianstad, Skåne, Sweden
  • Opp Mine (Demmer; Winkler; U. S. Government Land; Gold Canyon), Jacksonville District, Jackson Co., Oregon, USA
  • Opportunity Claim, Nooksack River, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA
  • Opportunity Group of Mines (Opportunity Mine), Keyesville (Keysville), Keyesville District (Keysville District), Kern Co., California, USA
  • Opportunity Mine, Hillsboro District, Sierra Co., New Mexico, USA
  • Opportunity Mine, Quartz Creek Pegmatite District, Gunnison Co., Colorado, USA
  • Opportunity, Pend Oreille District, Bonner Co., Idaho, USA
  • Opportunity Prospect, Inyo Co., California, USA
  • Oppossum Reef, Kangaroo Flat, Victoria, Australia
  • Opprebais, Incourt, Walloon Brabant Province, Belgium
  • Oppsjøen Mine, Oppsjø, Dikemark, Asker, Akershus, Norway
  • Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Opsata Mine, Ophir District, Powell Co., Montana, USA
  • Optimo No. 2 Mine, Linden, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Optimo No. 3 Mine (Rolling Mine), Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Optimo No. 4 Mine (Fearless), Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Optimo prospect (Blue Gold), Luis Lopez manganese District, Socorro Co., New Mexico, USA
  • Option No. 1 Claim (Hammond No. 1; Worthless No. 1), Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
  • Option Occurrence, Placer Center, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • Optisima claim, La Providencia Mines, Andara Mining District, Cillorigo de Liébana, Cantabria, Spain
  • O.P., Tuolumne Co., California, USA
  • Opulent Claim, Bingham District (West Mountain District), Oquirrh Mts, Salt Lake Co., Utah, USA
  • Opulent Mine, Riverside Co., California, USA
  • Opuwo District, Kunene Region, Namibia
  • Oqueque Mine, Tyrone Area, Burro Mountains District, Grant Co., New Mexico, USA
  • O'Quinn Creek, Fayette Co., Texas, USA
  • Oquirrh Mts, Salt Lake Co., Utah, USA
  • Oquirrh Mts - Southern part, Oquirrh Mts, Tooele Co., Utah, USA
  • Oquirrh Mts, Tooele Co., Utah, USA
  • Oquirrh Mts, Utah Co., Utah, USA
  • Ora Anna Quartz Mine (Crescent City Mine), Bald Hill, Klamath Mts, Del Norte Co., California, USA
  • Ora Astra Prospect, Beaverhead District (Dark Horse District), Beaverhead Co., Montana, USA
  • Ora Banda, Coolgardie Shire, Western Australia, Australia
  • Oracle area, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA
  • Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pima Co., Arizona, USA
  • Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA
  • Oracle, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA
  • Oracle Prospect, Kern Co., California, USA
  • Oracle Ridge Mine (Marble Peak; Control Copper property), Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pima Co. & Pinal Co., Arizona, USA
  • Orada mine, Pias, Serpa, Beja District, Portugal
  • Oradea, Bihor Co., Romania
  • Ora group (Ora No. 1 claim; Ord group; Ora No. 2 claim; Roocky Genes claim), Julian, Julian District, San Diego Co., California, USA
  • Ora Hans prospect, Hidden Valley Lake, Lake Co., California, USA
  • Orahood Bank, Jefferson Co., Colorado, USA
  • Oraibi Prospect, Shadow Mtns. (South) Area, San Bernardino Co., California, USA
  • Ora Jones Farm Deposit, Goose Creek District, Twin Falls Co., Idaho, USA
  • Ora Lewa, Yuba Co., California, USA
  • Oral, Fall River Co., South Dakota, USA
  • Oral Grand Occurrence (Oro Grant; Oro Grand; Oral Grand 2), Canyon Creek District, Grant Co., Oregon, USA
  • Ora Lovell claim (Illinois claim; Silver Prince claim), Pahranagat District, Lincoln Co., Nevada, USA
  • Oral Rayon (Uralsk Rayon), Western Kazakhstan Province (Batys Qazaqstan Oblysy; Zapadno-Kazakhstanskaya Oblast'), Kazakhstan
  • Ora Mae mine, Gold Point District, Esmeralda Co., Nevada, USA
  • Ora Marmo Occurrence, Malheur District (Mormon Basin District), Malheur Co., Oregon, USA
  • Ora May claim, Turquoise District (Courtland-Gleeson District), Dragoon Mts, Cochise Co., Arizona, USA
  • Ora Mine, Bossburg, Northport District, Stevens Co., Washington, USA
  • Ora Mine, Garden Spring Canyon, Bingham, Hansonburg District, Socorro Co., New Mexico, USA
  • Ora mine, Liberty pit, Liberty pit (Big pit), Liberty pit, Robinson District, White Pine Co., Nevada, USA
  • Oram mine, Brandon, Rutland Co., Vermont, USA
  • Orandake, Central City District, Gilpin Co., Colorado, USA
  • Orando Claim (Leavenworth Claim), Orando, Chelan Co., Washington, USA
  • Orange and Poppy Placer Mine, Threemile Rock, Plumas Co., California, USA
  • Orange Blossom Group (Manning), Kern Co., California, USA
  • Orange Blossom Mine (Cavagnaro), Mariposa Co., California, USA
  • Orange Blossom Prospect (Orange Blossom Extension; Gold Coin), San Bernardino Co., California, USA
  • Orangeburg Co., South Carolina, USA
  • Orange Co., California, USA
  • Orange Co., Florida, USA
  • Orange Co., Indiana, USA
  • Orange Co., New York, USA
  • Orange Co., North Carolina, USA
  • Orange Co., Vermont, USA
  • Orange Co., Virginia, USA
  • Orange, Franklin Co., Massachusetts, USA
  • Orange Free State mine, Murchison Range, Limpopo Province, South Africa
  • Orange, Grafton Co., New Hampshire, USA
  • Orange Grove Prospect, Gold-Pyrite Belt, Orange Co., Virginia, USA
  • Orange Hill Prospect, Chisana District, Valdez-Cordova Borough, Alaska, USA
  • Orange mine, Prospect Ridge, Eureka District, Eureka Co., Nevada, USA
  • Orange Mountain Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA
  • Orange, New Haven Co., Connecticut, USA
  • Orange pegmatite locality, Orange, Franklin Co., Massachusetts, USA
  • Orange Plains Mine, Tottenham, Kennedy Co., New South Wales, Australia
  • Orange Point Deposit Prospects, Juneau District, Skagway-Hoonah-Angoon Borough, Alaska, USA
  • Orange Quarry Co. Quarry (Eagle Rock Quarry), West Orange, Essex Co., New Jersey, USA
  • Orange Quarry, Placentia, Orange Co., California, USA
  • Orange River mining area, Karas Region, Namibia
  • Orange River, Namaqualand, Northern Cape Province, South Africa
  • Orange River, Northern Cape Province, South Africa
  • Orange River, Warmbad, Karasburg District, Karas Region, Namibia
  • Orangetown, Rockland Co., New York, USA
  • Orange Walk District, Belize
  • Orani, Nuoro Province, Sardinia, Italy
  • Oranjemund, Orange River mining area, Karas Region, Namibia
  • Oranje-Nassau-III mine, Heerlen, Limburg, Netherlands
  • Oranje-Nassau-II mine, Schaesberg, Landgraaf, Limburg, Netherlands
  • Oranje-Nassau-I mine, Heerlen, Limburg, Netherlands
  • Oranje-Nassau-IV mine, Heerlen, Limburg, Netherlands
  • Oran Mine, Konnerud, Drammen, Buskerud, Norway
  • Ora No. 1 Claim, Kern Co., California, USA
  • Oran Province, Algeria
  • Orapa, Letlhakane District, Central District, Botswana
  • Orapa Mine, Orapa, Letlhakane District, Central District, Botswana
  • Oraparinna Asbestos Mine, Oraparinna homestead, Bunkers Range, South Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Oraparinna Hill, Oraparinna homestead, Bunkers Range, South Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Oraparinna homestead, Bunkers Range, South Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Oraparinna Mine (Oraparinna Barytes Mine), Oraparinna homestead, Bunkers Range, South Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Ora prospect, Bromide No. 2 District, Rio Arriba Co., New Mexico, USA
  • Ora S. Causby Mine (Bonanza No. 1; Bonanza No. 2; Clay Quartz; Wanda Blanche), Tuolumne Co., California, USA
  • Øraskarđ, Øravik, Suduroy island, Faroe Islands (Faeroe Islands; Faeroes; Faroes), Denmark
  • Oratunga Mine, Blinman, North Flinders Ranges, Flinders Ranges, South Australia, Australia
  • Oraviţa-Ciclova Cu-Mo-(W) ore field, Banat Mts, Caras-Severin Co., Romania
  • Oraviţa (Oravicza; Orawitza), Oraviţa-Ciclova Cu-Mo-(W) ore field, Banat Mts, Caras-Severin Co., Romania
  • Oravská Magura Mts, Žilina Region, Slovakia
  • Orazada Mine, McCoy Lake, Deer Trail District, Stevens Co., Washington, USA
  • Orba stream, Alessandria Province, Piedmont, Italy
  • Orbeillaz Mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
  • Orberg - Badberg area, Schelingen, Kaiserstuhl, Baden-Württemberg, Germany
  • Orberg Quarry, Orberg - Badberg area, Schelingen, Kaiserstuhl, Baden-Württemberg, Germany
  • Orbost, Victoria, Australia
  • Orb river alluvials, Tarassac, Mons, Olargues, Hérault, Languedoc-Roussillon, France
  • Orchan mine, Matagami, Nord-du-Québec, Québec, Canada
  • Orchan West deposit, Matagami, Nord-du-Québec, Québec, Canada
  • Orchard, Ash Lawn, Albemarle Co., Virginia, USA
  • Orchard Deposits (Dunbar Property), Havasu Lake, San Bernardino Co., California, USA
  • Orchard dome, Orchard, Fort Bend Co., Texas, USA
  • Orchard Mine, Port Oram, Randolph Township, Morris Co., New Jersey, USA
  • Orchard Quarry, Buckfield, Oxford Co., Maine, USA
  • Orchard Quarry, Prideaux, Luxulyan, St Austell District, Cornwall, England, UK
  • Orchards, Clark Co., Washington, USA
  • Orchi, Conca della Campania, Roccamonfina Volcanic Complex, Caserta Province, Campania, Italy
  • Orchid Mine, Adams Mountain, Cedar Canyon District, Stevens Co., Washington, USA
  • Orchid No. 2 Mine, Riverside Co., California, USA
  • Orchin Mine, St. Ives gold camp, Kambalda, Coolgardie Shire, Western Australia, Australia
  • Orciatico, Lajatico, Pisa Province, Tuscany, Italy
  • Orcopampa District, Castilla Province, Arequipa Department, Peru
  • Orcopampa Mine, Orcopampa District, Castilla Province, Arequipa Department, Peru
  • Orco stream, Torino Province, Piedmont, Italy
  • Orco Valley, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy
  • Orco Valley, Torino Province, Piedmont, Italy
  • Orcutt Hydraulic Mine, Yoakumville, Klamath Mts, Siskiyou Co., California, USA
  • Orcutt Placer Mine, Somes Bar area, Klamath Mts, Humboldt Co., California, USA
  • Orcutt, Santa Barbara Co., California, USA
  • Orczy Adit, Parádfürdő, Mátra Mts., Heves Co., Hungary
  • Ordagna Creek, Viù, Viù Valley, Lanzo Valley, Sesia-Lanzo zone, Torino Province, Piedmont, Italy
  • Orda, Permskaya Oblast', Middle Urals, Urals Region, Russia
  • Ord Bain, Loch an Eilein, North West Highlands (Inverness-shire), Scotland, UK
  • Ord Belt Mine, Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ordean-Allen Pit (Minorca Taconite Company; Inland Steel Company), Mesabi Range, St. Louis Co., Minnesota, USA
  • Ord Mine (Ord Mercury Mine; Ord group; Indian claims), Slate Creek, Reno Pass, Sunflower District (Mazatzal Mountains District; Quicksilver District), Mazatzal Mts, Gila Co., Arizona, USA
  • Ord Mountain Iron prospect (Newberry Mountains Mine; Ord Mountain Mine), Daggett, Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ord Mountain Mine (Ord Mine; Osborn Mine; Rio Vista Mine), Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ord Mountain Mine (Ord Mountain Mine System; Ord Mine; Ord Mountain deposits; Osborn; Rio Vista), Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ord Mountain, Ord District, Ord Mts, San Bernardino Co., California, USA
  • Ord Mountains Dolomite, San Bernardino Co., California, USA
  • Ord Mts, San Bernardino Co., California, USA
  • Ördög Hill, Sukoró, Velencei Mts., Fejér Co., Hungary
  • Ördöglyuk, Solymár, Budai Mts., Pest Co., Hungary
  • Ördögorom Hill, Budapest, Budai Mts., Pest Co., Hungary
  • Ordos League (E'erduosi Prefecture), Inner Mongolia Autonomous Region, China
  • Ordovician limestones, Limestone Co., Alabama, USA
  • Ordu Province, Black Sea Region, Turkey
  • Ord, Valley Co., Nebraska, USA
  • Ordway Pit, Wheeler Co., Oregon, USA
  • Ordway Quarry, Topsham, Sagadahoc Co., Maine, USA
  • Ordway Tungsten Occurrence (Taber Ordway), Kootenai Co., Idaho, USA
  • Oreamnos Lake, Sawtooth Batholith/Sawtooth Mts, Boise Co., Idaho, USA
  • Oreana Area, Owyhee Co., Idaho, USA
  • Oreana Tungsten mine (Little Tungsten mine), Rye Patch District, Pershing Co., Nevada, USA
  • O Rear Prospect, Illinois - Kentucky Fluorspar District, Pope Co., Illinois, USA
  • Ore Bag claim, Seeley group, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Orebank Barite Mine (Orebank Iron Prospects), Fall Branch Barite District, Sullivan Co., Tennessee, USA
  • Ore Bank Iron Mines (MRDS - 10025893), Greene Co., Tennessee, USA
  • Ore Bank Mine, Augusta Co., Virginia, USA
  • Ore Bank No. 6 (Convict Bank), Bartow Co., Georgia, USA
  • Ore Bank Prospect, Jefferson Co., West Virginia, USA
  • Orebody 31, Luobusha Mine ("Luobusa" Mine), Luobusha ophiolite ("Luobusa ophiolite"), Qusum (Qusong) Co., Shannan (Lhokha; Lhoka) Prefecture, Tibet Autonomous Region, China
  • Ore Body (MRDS - 10190497), Costilla Co., Colorado, USA
  • Ore Body Occurrence (MRDS - 10170862), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Body Occurrence (MRDS - 10194110), Gogebic iron range, Gogebic Co., Michigan, USA
  • Örebro, Närke, Sweden
  • Oreburg Pit, Floyd Co., Georgia, USA
  • Ore Cache Mine (Oro Cache Mine), White Mud Lake, Stevens Co., Washington, USA
  • Ore Chimney Mine, Bishop Corners, Barrie Township, Frontenac Co., Ontario, Canada
  • Ore-Con properties, Yavapai Co., Arizona, USA
  • Oredell Mine (Oremont; C. B. Arrington Property), Polk Co., Georgia, USA
  • Ore Drag mine, Iron Hat District, Pershing Co., Nevada, USA
  • Ore Drag mine, Tobin and Sonoma Range District, Pershing Co., Nevada, USA
  • Ore dumps, Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany
  • Ore Finder Group, Pleasant View District, Ravalli Co., Montana, USA
  • Ore Finea Diggens, Calaveras Co., California, USA
  • Oreganal Mine, Mun. de Barrancas, La Guajira Department, Colombia
  • Oregan Ridge, Baltimore Co., Maryland, USA
  • Ore Gap, Esk Pike, North and Western Region (Cumberland), Cumbria, England, UK
  • Ore Gap Prospect, Wilkes Co., North Carolina, USA
  • Öregkő, Bajót, Gerecse Mts., Komárom-Esztergom Co., Hungary
  • Oregon Bauxite Deposit, Columbia Co., Oregon, USA
  • Oregon Beauty Claim, Powell Creek District, Josephine Co., Oregon, USA
  • Oregon Belle Mine, Applegate District, Jackson Co., Oregon, USA
  • Oregon Bonanza Mine, Powell Creek District, Josephine Co., Oregon, USA
  • Oregon Buttes Area, Fremont Co., Wyoming, USA
  • Oregon Calcite Corporation Occurrence, Josephine Co., Oregon, USA
  • Oregon Caves National Monument Occurrence (Cave Creek), Waldo District, Josephine Co., Oregon, USA
  • Oregon Chief Mine, Cable Cove District, Baker Co., Oregon, USA
  • Oregon Chief Occurrence (MRDS - 10032732), Rye Valley District (Mormon Basin District), Baker Co., Oregon, USA
  • Oregon Chrome Mines Property (Illinois River Mine; Black Beauty; Robertson Mine), Illinois River District, Josephine Co., Oregon, USA
  • Oregon Chrome Occurrence, South Fork Area, Grant Co., Oregon, USA
  • Oregon City, Clackamas Co., Oregon, USA
  • Oregon claim, Sierra Co., California, USA
  • Oregon Claims (Unpatented Claims: Oregon No. 1; Oregon No. 2), Needle Mountain District (Tacoma District; Florida District; Vallecito District), La Plata Co., Colorado, USA
  • Oregon Clay Products, Malheur Co., Oregon, USA
  • Oregon-Colorado Occurrence, Bohemia District (Champion District), Lane Co., Oregon, USA
  • Oregon Consolidated, West Shasta Copper - Zinc District, Shasta Co., California, USA
  • Oregon Construction Company Quarry, Ogle Co., Illinois, USA
  • Oregon Copper Mine (Coconino Mine; Chicago Mine), Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
  • Oregon Creek Mine (below Nugget Gulch), Nome District, Nome Borough, Alaska, USA
  • Oregon Creek Mine, Nome District, Nome Borough, Alaska, USA
  • Oregon Creek Placer, Oregon Creek, Mineral Co., Montana, USA
  • Oregon Creek Prospect, Fortymile District, Southeast Fairbanks Borough, Alaska, USA
  • Oregon Creek Prospects, Koyukuk District, Yukon-Koyukuk Borough, Alaska, USA
  • Oregon Dredging Company, Upper Burnt River District, Baker Co., Oregon, USA
  • Oregon Emerald Tuff Quarry, Crook Co., Oregon, USA
  • Oregon Granite Quarry, Jackson Co., Oregon, USA
  • Oregon Grape Occurrence, Bear Creek District, Crook Co., Oregon, USA
  • Oregon Group Claims (Rapid River Mining Group), Idaho Co., Idaho, USA
  • Oregon group, Stanley District, Turnbull Mts, San Carlos Indian Reservation, Graham Co., Arizona, USA
  • Oregon Gulch Gold Dredge, Trinity Co., California, USA
  • Oregon Gulch, Lewis and Clark Co., Montana, USA
  • Oregon Gulch Placer, North Fork District, Grant Co., Oregon, USA
  • Oregon Hill and Columbia Tunnel Placer, El Dorado Co., California, USA
  • Oregon-Idaho Silver-Gold, Shoshone Co., Idaho, USA
  • Oregon Jade Mine, Durkee, Baker Co., Oregon, USA
  • Oregon King Mine, Horse Heaven District, Jefferson Co., Oregon, USA
  • Oregon Lime Products Mine (Washington Lime & Brick), Josephine Co., Oregon, USA
  • Oregon Mine (Cool Springs claims), Plaskett, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
  • Oregon Mine (French Mine), Hedley, Osoyoos Mining Division, British Columbia, Canada
  • Oregon Mine (Kate Hays; Crescent), Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Oregon Mine (Little Fort Valley Mines), Little Fort Valley, Shenandoah Co., Virginia, USA
  • Oregon Mine, Mohave Co., Arizona, USA
  • Oregon Mine, Nederland, Nederland District, Boulder Co., Colorado, USA
  • Oregon Mine, Oregon-Prompter mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
  • Oregon Mine, Placerville (Hangtown), Placerville District, El Dorado Co., California, USA
  • Oregon Mine, Upper Mississippi Valley District, Lafayette Co., Wisconsin, USA
  • Oregon Mine, Uravan District, Montrose Co., Colorado, USA
  • Oregon Mining and Power Company (Cracker Jack?), Douglas Co., Oregon, USA
  • Oregon Mining Company Occurrence, Upper Burnt River District, Baker Co., Oregon, USA
  • Oregon Monarch Occurrence, Red Boy District / Granite Area, Grant Co., Oregon, USA
  • Oregon Mountain Area Prospect, Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA
  • Oregon No. 1½ pegmatite (Raleigh Peak Big Bear pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Oregon No. 1 pegmatite (Raleigh Peak No. 2 and 2a pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Oregon No. 2½ pegmatite (Raleigh Peak No. 4 pegmatite; Big Dick pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Oregon No. 2 pegmatite (Raleigh Peak No. 3 pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Oregon No. 3 Mine (Quartz Knob; White Cap-Raleigh Peak group), South Platte Pegmatite District, Jefferson Co., Colorado, USA
  • Oregon no. 5 claim, Ferber District, Elko Co., Nevada, USA
  • Oregon Nos.1; 2 & 3 and Little Patsy, Douglas Co., Colorado, USA
  • Oregon Occurrence, Adams Co., Idaho, USA
  • Oregon Occurrence (Wilson), Wallowa Range District, Wallowa Co., Oregon, USA
  • Oregon Ore Banks, Baltimore Co., Maryland, USA
  • Oregon Patented Prospect, Stillwater Complex, Park Co., Montana, USA
  • Oregon Placer Mines, Gold Hill District, Jackson Co., Oregon, USA
  • Oregon Plant & Quarry (Manley Quarry), Ogle Co., Illinois, USA
  • Oregon Portland Cement Company, Clackamas Co., Oregon, USA
  • Oregon Portland Cement Company, Douglas Co., Oregon, USA
  • Oregon Portland Cement Company, Lower Burnt River District, Baker Co., Oregon, USA
  • Oregon Portland Cement Company, Polk Co., Oregon, USA
  • Oregon Portland Cement Quarry (Oregon Portland Cement 1), Lower Burnt River District, Baker Co., Oregon, USA
  • Oregon-Prompter Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
  • Oregon Prospect, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
  • Oregon prospect, Kirwin District (Kerwin District), Park Co., Wyoming, USA
  • Oregon Prospect, Mineral Hill District (Pony District), Madison Co., Montana, USA
  • Oregon Quarry (W. Seitz Quarry), Ogle Co., Illinois, USA
  • Oregon Shaft, Idaho Springs District, Clear Creek Co., Colorado, USA
  • Oregon shaft, Lander Hill, Reese River District, Lander Co., Nevada, USA
  • Oregon Short Line mine, Bristol and Jackrabbit Districts, Lincoln Co., Nevada, USA
  • Oregon State Highway Division 2, Clackamas Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10051865), Benton Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10051866), Benton Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10051872), Washington Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10051874), Washington Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10128889), Washington Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10134631), Washington Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10153640), Washington Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10200887), Columbia Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10257055), Columbia Co., Oregon, USA
  • Oregon State Highway Division (MRDS - 10298939), Columbia Co., Oregon, USA
  • Oregon State Highway No. 1, Deschutes Co., Oregon, USA
  • Oregon State Pit 32-16-5, Wallowa Co., Oregon, USA
  • Oregon State University (MRDS - 10051877), Benton Co., Oregon, USA
  • Oregon State University (MRDS - 10051878), Benton Co., Oregon, USA
  • Oregon State University (MRDS - 10051879), Benton Co., Oregon, USA
  • Oregon State University (MRDS - 10051880), Benton Co., Oregon, USA
  • Oregon Technical Institute Occurrence, Klamath Co., Oregon, USA
  • Oregon Trail Occurrence, Virtue District, Baker Co., Oregon, USA
  • Oregon Tunnel Mine, Bonanza District (Kerber Creek District), Saguache Co., Colorado, USA
  • Oregon, USA
  • Oregon; Washington; Hula Hula Prospects, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
  • Oregon Wonder Occurrence (Will Cleaver Group), Canyon City District, Grant Co., Oregon, USA
  • Ore Grande, Shasta Co., California, USA
  • Ore Hill Epidote localities, Ore Hill, Sugar Hill, Grafton Co., New Hampshire, USA
  • Ore Hill Mine, Carolina Slate Belt, Chatham Co., North Carolina, USA
  • Ore Hill Mine (Ore Hill Gold Mine), Monroe, Union Co., North Carolina, USA
  • Ore Hill Mine, Pacoima Canyon, San Gabriel Mts, Los Angeles Co., California, USA
  • Ore Hill Mine (Warren Silver-Lead Mine; Warren Zinc Mine), Warren, Grafton Co., New Hampshire, USA
  • Ore Hill Prospect, Chatham Co., North Carolina, USA
  • Ore Hill, Sugar Hill, Grafton Co., New Hampshire, USA
  • Ore House No. 32b Prospect, Dome District, Butte Co., Idaho, USA
  • Ore House No. 7 and 8 Prospect, Wilbert Mine (Daisy Black), Dome District, Butte Co., Idaho, USA
  • Oreilly Mine, Ophir District, San Miguel Co., Colorado, USA
  • Orejana Mine (Orejana adit; Unpatented claim Sabre; Sabre Mining Co. property; Oriana Mine), Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
  • Orejon Mine, Tortugas Mountain District, Doña Ana Co., New Mexico, USA
  • Ore Knob Mine, Ore Knob, Ashe Co., North Carolina, USA
  • Oreland, Springfield Township, Montgomery Co., Pennsylvania, USA
  • Orellana Province, Ecuador
  • Orella, Sioux Co., Nebraska, USA
  • O Rell Station Occurrences, Placer Co., California, USA
  • Orenada mine, Val d'Or, La Vallée-de-l'Or RCM, Abitibi-Témiscamingue, Québec, Canada
  • Orenada No. 4 mine, Orenada mine, Val d'Or, La Vallée-de-l'Or RCM, Abitibi-Témiscamingue, Québec, Canada
  • Orenburgskaya Oblast', Southern Urals, Urals Region, Russia
  • Orense (Ourense), Galicia, Spain
  • Oreokastro, Thessaloníki (Salonica) Prefecture, Macedonia Department, Greece
  • Oreona Mine, Amado Mine group, Las Guijas Mts, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
  • Oreo; Oreo Mountain Prospect, Fortymile District, Southeast Fairbanks Borough, Alaska, USA
  • Ore Outcrop Occurrence (MRDS - 10121364), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10121518), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10121685), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10121798), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10146375), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10146530), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10170348), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10170982), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10194757), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10208089), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10218463), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10218814), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10243452), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10243636), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10267987), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10268074), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10268205), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10291435), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10291563), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10291608), Gogebic iron range, Gogebic Co., Michigan, USA
  • Ore Outcrop Occurrence (MRDS - 10291807), Gogebic iron range, Gogebic Co., Michigan, USA
  • Orepuki, Southland, South Island, New Zealand
  • Ore Recoveries Mine, Silverton mines group (Ore Recoveries group), Silverton, Silverton District, Snohomish Co., Washington, USA
  • Ores and Metals Mine, Squaw Gulch, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA
  • Orestimba Creek, Henry Coe State Park, Diablo Range, Stanislaus Co., California, USA
  • Orestimba Mine (Palo Alto), Orestimba, Stanislaus Co., California, USA
  • Oreton Mine, Wise Co., Virginia, USA
  • Oretorpet, Vånga, Kristianstad, Skåne, Sweden
  • Oreville, Custer Co., South Dakota, USA
  • Oreville District, Pennington Co., South Dakota, USA
  • Oreville Spar Mica Mine, Oreville District, Pennington Co., South Dakota, USA
  • Orezona Mine, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Orford, Grafton Co., New Hampshire, USA
  • Orford Nickel mine, St-Denis-de-Brompton, Le Val-Saint-François RCM, Estrie, Québec, Canada
  • Orford soapstone quarries, Orford, Grafton Co., New Hampshire, USA
  • Organ and Gowan Prospects, Carroll Co., Tennessee, USA
  • Organ Boy Placer, Quigley Area, Power Co., Idaho, USA
  • Organ Cave, Greenbrier Co., West Virginia, USA
  • Organ District, Doña Ana Co., New Mexico, USA
  • Organeta Mine, Mariposa Co., California, USA
  • Organ mine, Mill City District, Pershing Co., Nevada, USA
  • Organ Mts, Organ District, Doña Ana Co., New Mexico, USA
  • Organos, Mun. de Aipe, Huila Department, Colombia
  • Organ Pipe Cactus National Monument, Pima Co., Arizona, USA
  • Organ Pipe Trust group, Growler District, Growler Mts, Organ Pipe Cactus National Monument, Pima Co., Arizona, USA
  • Organullo Mining District, Salta, Argentina
  • Orgeix, Ax-les-Thermes, Ariège, Midi-Pyrénées, France
  • Orgelstolln, Schreckenberg, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany
  • Orgueil meteorite (Montauban; Orguell [NHM Cat.]), Orgueil, Midi-Pyrénées, France
  • Orgueuil meteorite, Montauban, Tarn-et-Garonne, Midi-Pyrénées, France
  • Orhaneli, Tavşanlı Zone, Bursa Province, Marmara Region, Turkey
  • Orhon Aimag (Orkhon Aimag), Mongolia
  • Orhon, Selenge Aimag, Mongolia
  • Oria, Almería, Andalusia, Spain
  • Orick area, Coastal Range, Humboldt Co., California, USA
  • Orick District, Humboldt Co., California, USA
  • Orick, Orick District, Humboldt Co., California, USA
  • Oridda, Domusnovas, Carbonia-Iglesias Province, Sardinia, Italy
  • Orieco mine, Scamander district, Tasmania, Australia
  • Oriene Prospect, Lewis and Clark Co., Montana, USA
  • Orientale, Democratic Republic of Congo (Zaïre)
  • Oriental Gen. No. 72 Patent, Yavapai Co., Arizona, USA
  • Oriental Gravel Pit, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA
  • Oriental Mine, Alleghany, Forest District (Alleghany; Chips Flats; Minnesota), Sierra Co., California, USA
  • Oriental Mine, Calaveras Co., California, USA
  • Oriental Mine, Camas District, Blaine Co., Idaho, USA
  • Oriental Mine, Chloride, Chloride District, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Oriental Mine, Deep Springs Valley, Inyo Co., California, USA
  • Oriental Mine, El Hembrar, Chóvar, Castellón, Valencian Community, Spain
  • Oriental Mine, Simmins Spring, Sulphur Creek, Sulphur Creek deposit, Sulphur Creek District (Sulfur Creek District; Wilbur Springs District), Colusa Co., California, USA
  • Oriental mine, Tokop District, Esmeralda Co., Nevada, USA
  • Oriental No. 1 Occurrence, Babyfoot - Little Chetco, Curry Co., Oregon, USA
  • Oriental Placer, Nevada Co., California, USA
  • Oriental Placer, North Fork District, Grant Co., Oregon, USA
  • Oriental prospect, Aguilar district, Jujuy, Argentina
  • Oriental Quartz Mine, Sawyers Bar, Liberty District, Klamath Mts, Siskiyou Co., California, USA
  • Oriental Region, Morocco
  • Oriental Tunnel, Georgetown District, Clear Creek Co., Colorado, USA
  • Orient District, Ferry Co., Washington, USA
  • Orient District, Stevens Co., Washington, USA
  • Oriente mine, Tres Puntas district, Chimberos, Copiapó Province, Atacama Region, Chile
  • Oriente Province, Cuba
  • Orient Iron Mine (Caesar; MS 11400; Valley View; MS 8940; Vivia B.; MS 4988; Runaway; MS 1539; Prospector; MS 1505; Villa Grove), Orient District, Saguache Co., Colorado, USA
  • Orient Mine, Sierra Co., California, USA
  • Orient Mine, West Tintic District, West Tintic Mts, Juab Co., Utah, USA
  • Orient Occurrence (Mammoth; Emma H.; Hubnerite; Occident; Bon Ton; Morning Glory; Molybdenite; Porcupine; Ida May), Tincup District, Gunnison Co., Colorado, USA
  • Orient, Orient District, Stevens Co., Washington, USA
  • Orient Point, Orient, Southold, Suffolk Co., New York, USA
  • Orient Prospect, Galena District, Blaine Co., Idaho, USA
  • Orient, Southold, Suffolk Co., New York, USA
  • Orient, Stevens Co., Washington, USA
  • Orient, Telluride District, San Miguel Co., Colorado, USA
  • Orient township well, Osceola Co., Michigan, USA
  • Orifena; Gaslight; Empire; Pennsylvania Occurrence, Teller District, Jackson Co., Colorado, USA
  • Oriflame Mine (Oriflamme Mine; Oroflame Mine), Alleghany, Forest District (Alleghany; Chips Flats; Minnesota), Sierra Co., California, USA
  • Oriflamme Mine (Oro Flamme Mine; Oreiflamme Mine), Julian, Julian District, San Diego Co., California, USA
  • Original Amador Mine (Eclipse Mine; Little Amador Mine), Amador City, Jackson-Plymouth District, Amador Co., California, USA
  • Original Canyon Quarry (Oro Grande Quarry), Oro Grande District, San Bernardino Co., California, USA
  • Original claim, Divide Creek District, Silver Bow Co., Montana, USA
  • Original claim, San Bernardino Co., California, USA
  • Original Geen Vein Mine, Green Vein Group, Green Vein Mesa, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
  • Original Gilbert mine, Gilbert District, Esmeralda Co., Nevada, USA
  • Original Gravel Placer, Shasta Co., California, USA
  • Original Greyhound Lode Mine (Ophir), Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Original Iron King Prospect, Tintic District, Utah Co., Utah, USA
  • Original Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Original Mine, Missouri River, Lewis and Clark Co., Montana, USA
  • Original Old Dominion Mine (Keystone Mine; Keystone deposit; Keystone vein; Original Old Dominion vein), Pinal Creek, Burch, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
  • Original Quartz Hill Mine (Hampton Creek), Shasta Co., California, USA
  • Original Redmond Clay and Salt-Salt Pit, Redmond Area, Sanpete Co., Utah, USA
  • Origin Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA
  • Orihuela, Alicante, Valencian Community, Spain
  • Orijärvi, Kisko, Salo, Southwestern Finland Region, Finland
  • Orinda, Diablo Range, Contra Costa Co., California, USA
  • Orinoco, Lamartine District, Clear Creek Co., Colorado, USA
  • Orinón (Orino), Makrigialos, Lasithi Prefecture, Crete (Kriti) Island, Crete (Kriti) Department, Greece
  • Oriocha, Argentina
  • Oriole Belt Mine, Esterbrook District, Albany Co., Wyoming, USA
  • Oriole, Lamartine District, Clear Creek Co., Colorado, USA
  • Oriole Mine, Esterbrook District, Converse Co., Wyoming, USA
  • Oriole Mine, Galice District, Josephine Co., Oregon, USA
  • Oriole Mine (Harris Nemo Mine; Big Bonanza Mine), Angels Camp District, Mother Lode Belt, Calaveras Co., California, USA
  • Oriole Mine, Indian Creek, Trinity Co., California, USA
  • Oriole Mine, Metaline, Metaline District, Pend Oreille Co., Washington, USA
  • Oriole mine, Shoshone District, White Pine Co., Nevada, USA
  • Oriole prospect (Yellow Boy prospect), Battle Mountain District, Lander Co., Nevada, USA
  • Oriole vein, Douglas Camp, Silver Star District, Mineral Co., Nevada, USA
  • Orion Consolidated Mine, Nevada Co., California, USA
  • Orion Mine, Charcas, Mun. de Charcas, San Luis Potosí, Mexico
  • Orion Mine, Inyo Co., California, USA
  • Orion Mine, Leadville District, Lake Co., Colorado, USA
  • Orion Mine (Orian Mine), Monitor - Mogul District, Alpine Co., California, USA
  • Orion mine, Val d'Or, La Vallée-de-l'Or RCM, Abitibi-Témiscamingue, Québec, Canada
  • Orion Mine, Walker District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Orion Mining Company Occurrence (Orion Mining Company Claims; Log Cabin), Howard District (Ochoco District; Bolivar District), Crook Co., Oregon, USA
  • Orion Occurrence, Custer Co., Idaho, USA
  • Orion (Orion Tunnel; Orion & Saddle No. 6 Fluorspar Mine), Central Mining District, Boulder Co., Colorado, USA
  • Orion Placer, Nevada Co., California, USA
  • Orion prospect, Kagel Canyon, San Gabriel Mts, Los Angeles Co., California, USA
  • Orion & Rule Placer, Placer Co., California, USA
  • Orion Two deposit, Mount Gibson, Murchison, Western Australia, Australia
  • Orion, Unity District, Baker Co., Oregon, USA
  • Ori Placer, El Dorado Co., California, USA
  • Oris (Eyrs), Lasa (Laas), Venosta Valley, Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
  • Orismühle quarry, Seltisberg, Liestal, Basel-Land, Switzerland
  • Orissa, India
  • Oristano Province, Sardinia, Italy
  • Orita, Imperial Co., California, USA
  • Oritate mine, Itsuki, Kumamoto Prefecture, Kyushu Region, Japan
  • Oritogumi quarry, Hadano City, Kanagawa Prefecture, Kanto Region, Honshu Island, Japan
  • Orito Mine, Asientos, Mun. de Asientos, Aguascalientes, Mexico
  • Orivesi, Western and Inner Finland Region, Finland
  • Oriximiná, Pará, Brazil
  • Orizaba Gold Mining Co. property, Yavapai Co., Arizona, USA
  • Orizaba mine, Cloverdale District, Nye Co., Nevada, USA
  • Orizaba mine (Green Metals mine), Republic District, Nye Co., Nevada, USA
  • Orizaba Mine, Lake St Clair, Fraguas, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Orizaba Mine (Orizabi Mine; Truman Mine; Orizaba-Southern Cross group; Belcher patented claim; Allied Mining & Smelting claim), New River District, Maricopa Co., Arizona, USA
  • Orizaba Mine, Washington District, Needle Range, Beaver Co., Utah, USA
  • Orizaba Silica Mine, Lake St Clair, Fraguas, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Oriziba Mine, Tat Momoli area, Casa Grande District, Slate Mts, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Orkanger, Orkdal, Sør-Trøndelag, Norway
  • Orkanger Quarry, Orkanger, Orkdal, Sør-Trøndelag, Norway
  • Orkdal, Sør-Trøndelag, Norway
  • Örkelljunga amphibolite, Örkelljunga, Skåne, Sweden
  • Örkelljunga gneiss, Örkelljunga, Skåne, Sweden
  • Örkelljunga, Skåne, Sweden
  • Orkho Piña prospect, Cerro Tiquerani, La Paz Department, Bolivia
  • Orkney Island, Orkney Islands, Scotland, UK
  • Orkney Islands, Scotland, UK
  • Orlandini mine, Cerro Ubina, Tolopampa, Antonio Quijarro Province, Potosí Department, Bolivia
  • Orlando claims, Proctor District, Elko Co., Nevada, USA
  • Orlando, Logan Co., Oklahoma, USA
  • Orlando Mine, Tennant Creek, Tennant Inlier, Northern Territory, Australia
  • Orleans, Barnstable Co., Massachusetts, USA
  • Orleans Co., New York, USA
  • Orleans Consolidated Quartz Mine, Nevada Co., California, USA
  • Orleans Co., Vermont, USA
  • Orleans No. 3 Quartz Mine, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Orleans (Orleans Bar; New Orleans Bar), Weitchpec District, Klamath Mts, Humboldt Co., California, USA
  • Orleans placer (Stony Bar Mining Company; Wilder claim; Bar Placer Mining Company; Graham Flat claims), Orleans (Orleans Bar; New Orleans Bar), Weitchpec District, Klamath Mts, Humboldt Co., California, USA
  • Orleans Quarry, Orange Co., Indiana, USA
  • Orlicke Zahori, Orlické Mts., Hradec Králové Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Orli di Fassa, Duron Valley, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy
  • Orlík (Štůly), Humpolec, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic
  • Orlovka, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Orlovskoye, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Orlovskoye Ta Deposit, Orlovskoye, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Orman Dam, Belle Fourche, Butte Co., South Dakota, USA
  • Orman McAllister Quarry, Lovell, Oxford Co., Maine, USA
  • O. R. Mascall Claims, South Fork Area, Grant Co., Oregon, USA
  • Orma-Valoy Nos. 1-32 Occurrence (Acme; Acme Nos. 1-6), Bull Valley District (Bull Valley), Washington Co., Utah, USA
  • Ormberg Mines, Nordmark district, Filipstad, Värmland, Sweden
  • Ormea, Tanaro Valley, Cuneo Province, Piedmont, Italy
  • Ormell Quarry, Harvey Township, Peterborough Co., Ontario, Canada
  • Ormen, Fen Complex, Nome, Telemark, Norway
  • Orme property, San Pitch Mts, Juab Co., Utah, USA
  • Ormestad, Vesterøya, Sandefjord, Vestfold, Norway
  • Ormie's Luck rush, Coocoran Opal Fields, Lightning Ridge, Finch Co., New South Wales, Australia
  • Ormília Mine, Ormília, Chalkidiki Prefecture, Macedonia Department, Greece
  • Ormond-Carr Tin Prospect, Kings Mountain District, Gaston Co., North Carolina, USA
  • Ormond Mine, Catawba Co., North Carolina, USA
  • Ormond Ore Bank Mine, Kings Mountain District, Gaston Co., North Carolina, USA
  • Ormosbánya, Borsodi Mts., Borsod-Abaúj-Zemplén Co., Hungary
  • Ormsby Co., Nevada, USA
  • Ormsby Mine, Pine Point, Yorke Peninsula, South Australia, Australia
  • Ormtjern Mines, Nedre Eiker, Buskerud, Norway
  • Ormtveit, Vrådal, Kviteseid, Telemark, Norway
  • Ornak Mountain, Western Tatra Mts, Małopolskie, Poland
  • Ornamental Stone, Mono Co., California, USA
  • Ornavasso pegmatite, Ornavasso, Verbano-Cusio-Ossola Province, Piedmont, Italy
  • Ornavasso, Verbano-Cusio-Ossola Province, Piedmont, Italy
  • Ornden Mine, Baboquivari District, Baboquivari Mts, Pima Co., Arizona, USA
  • Ornding, Pöchlarn, Mostviertel, Lower Austria, Austria
  • Ørnebukta, Tananger, Sola, Rogaland, Norway
  • Orne, Lower Normandy, France
  • Ørnetind, Seiland Island, Alta, Finnmark, Norway
  • Ørnhammeren, Oppdal, Sør-Trøndelag, Norway
  • Orno Mount mine, Vignola-Falesina, Valsugana, Trento Province, Trentino-Alto Adige, Italy
  • Örnsköldsvik, Ångermanland, Sweden
  • Ørnstolen, Selsøyvik, Rødøy, Nordland, Norway
  • Oro Amigo mine (Aura Amigo mine), Goodsprings District, Clark Co., Nevada, USA
  • Oro and Gold Thread Placer, Cedar Creek District (Trout Creek District; Superior District), Mineral Co., Montana, USA
  • Oro Bell Dredging Company Placer (Chenoweth Dredger), Placer Co., California, USA
  • Oro Belle Mine (Castle Mountain Project), San Bernardino Co., California, USA
  • Oro Belle Mine, Gray Eagle Mine (Oro Belle and Gray Eagle Mine; Patented claim Oro Bonito Gen No. 154; Patented claims 12830 & 854; Oro Bella Mine), Tiger District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Oro Blanco area mines (Oro Blanco Mine group), Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Blanco Mine, Heróica Caborca, Mun. de Caborca, Sonora, Mexico
  • Oro Blanco Mine (White Gold Mine), Oro Blanco area mines (Oro Blanco Mine group), Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Blanco placers, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Bonito Mine, Tiger District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Oro Bueno Mine (Gold Standard Mine; Lucy MS 1637 claim; Gold Standard MS 1637 claim; Silver Belt MS 1637 claim), Yavapai Co., Arizona, USA
  • Oro Cache Mine (Ore Cash; Freeman; Marc Claims), Carmen Creek District, Lemhi Co., Idaho, USA
  • Oro Cache Mine (Oro Catch), Summit, Alder Gulch District (Virginia City District; Fairweather District), Madison Co., Montana, USA
  • Oro Cache Mining and Milling Co. group, Eden District, Nye Co., Nevada, USA
  • Oro Cache Occurrence, Tom Thumb Mine, Hahns Peak District (Columbine District), Routt Co., Colorado, USA
  • Oro Cache Prospect (Catch of Ore), New World District (Cooke District), Park Co., Montana, USA
  • Oro Cash Mine, Lead District, Lawrence Co., South Dakota, USA
  • Oro Cash Mine, Upper Union District (Empire District), Clear Creek Co., Colorado, USA
  • Oro City Shaft, Leadville District, Lake Co., Colorado, USA
  • Oro claim, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Orocopia Canyon, Riverside Co., California, USA
  • Orocopia Fluorspar Mine (Holmestake Mine), Orocopia Mts, Riverside Co., California, USA
  • Orocopia Mine (Dos Palmas; Dos Palmas Mine; Fish; Black Jack Claim), Riverside Co., California, USA
  • Orocopia Mts, Riverside Co., California, USA
  • Oro Copio Mine, Riverside Co., California, USA
  • Orocovis, Puerto Rico
  • Oro Del Lomas, Trinity Co., California, USA
  • Oro del Ray Mine (Card Workings; Hickock; Thompson & Lehmer Adits), Willow Springs District, Deep Creek Mts, Tooele Co., Utah, USA
  • Oro Escondido prospect (Doran's Folly), Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Fina (Bullion; Bullion Nos. 1-2), Placer Co., California, USA
  • Oro Fino and Floyd Claims, Ophir, Ophir District (Auburn District), Placer Co., California, USA
  • Oro Fino and Mineral Hill Mine, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Oro Fino, Boulder Mountains Area, Deer Lodge Co., Montana, USA
  • Oro Fino, Calaveras Co., California, USA
  • Oro Fino Claim, Silver Creek District, Snohomish Co., Washington, USA
  • Orofino Creek Anthophyllite Occurrence, Orofino District, Clearwater Co., Idaho, USA
  • Orofino Creek (Idaho Company Limited), Pierce City District, Clearwater Co., Idaho, USA
  • Orofino Creek, Ontario District (Elliston District), Powell Co., Montana, USA
  • Orofino Creek, Pierce City, Clearwater Co., Idaho, USA
  • Orofino Creek Placer, Orofino District, Deer Lodge Co., Montana, USA
  • Orofino Creek Placer, Pierce City District, Clearwater Co., Idaho, USA
  • Orofino Deposit, Madison Co., Montana, USA
  • Orofino District, Deer Lodge Co., Montana, USA
  • Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Oro Fino & Golden Era prospect (Golden Era claim; Oro Fino claim), Frazier Park area, Frazier Mountain District (Fraser Mountain District), Sespe Frazier Roadless Area Review & Evaluation (RARE) II Area, San Emigdio Mts, Ventura Co., California, USA
  • Oro Fino gold placers (Oro Fino placer; Orofino placers; Orofino tract), Tyson Wash, Dome Rock placers, Middle Camp-Oro Fino District, Dome Rock Mts, La Paz Co., Arizona, USA
  • Orofino Group (Estep; Mildred; Arrastre), Ramey Ridge District, Idaho Co., Idaho, USA
  • Orofino, Jamestown District, Boulder Co., Colorado, USA
  • Oro Fino, La Plata District (California District), La Plata Co., Colorado, USA
  • Orofino Lode Occurrence, North Fork Area, Lemhi Co., Idaho, USA
  • Oro Fino Mine, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
  • Oro Fino Mine (Bobtail Mine), La Plata District (California District), Grand Co., Colorado, USA
  • Oro Fino Mine, El Dorado Co., California, USA
  • Oro Fino Mine, Galena District, Lawrence Co., South Dakota, USA
  • Oro Fino Mine, Nevada Co., California, USA
  • Oro Fino Mine (Noon Mine), Bartlett Mountain, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Fino Mine (Oro Fino El Diablo Mine), Escondido, San Diego Co., California, USA
  • Oro Fino Mine (Orofino Mine), Groom Creek, Groom Creek District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Oro Fino mine, Rochester District, Pershing Co., Nevada, USA
  • Oro Fino Mine, Shasta Co., California, USA
  • Oro Fino Mine (Shoshone Mines - 0060270207), Inyo Co., California, USA
  • Oro Fino Mine (Singing Water; Gold Drift; Elk Horn), Winona District, Josephine Co., Oregon, USA
  • Orofino Mine (Sinker Tunnel), War Eagle Mine, Silver City District (Carson District), Owyhee Co., Idaho, USA
  • Oro Fino Mine, Solo, Baker, Mojave National Preserve, San Bernardino Co., California, USA
  • Oro Fino Mine, Southern Cross District, Deer Lodge Co., Montana, USA
  • Oro Fino Mine, Stemple District (Fool Hen District), Lewis and Clark Co., Montana, USA
  • Oro Fino Mine, Utopia District (Birch Creek District), Beaverhead Co., Montana, USA
  • Oro Fino No. 1 & 2, Fresno Co., California, USA
  • Oro Fino No. 1 prospect (Oro Fino prospect No. 1), Oro Fino, Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Oro Fino No. 2 prospect (Oro Fino No. 2 Mine), Oro Fino, Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Orofino Occurrence (Golden Rod), Bohemia District (Champion District), Lane Co., Oregon, USA
  • Oro Fino occurrence, Pilot Peak, Plumas Co., California, USA
  • Oro Fino, Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Oro Fino Placer, Alamo District, Grant Co., Oregon, USA
  • Oro-Fino Placer, Clearwater Co., Idaho, USA
  • Oro Fino Placer Mine (El Paso Mountain Placers - 0060290757), Kern Co., California, USA
  • Oro Fino Placer Mine, Lake Nacimiento, San Luis Obispo Co., California, USA
  • Oro Fino Placer Mine (Oro Fino Mine), De Sabla, Magalia District, Butte Co., California, USA
  • Orofino (?) Prospects (Unidentified Workings), Riverside Co., California, USA
  • Orofino Quarries No. 1 and No. 2, Orofino District, Clearwater Co., Idaho, USA
  • Oro Fino Quarry, Greenview, Oro Fino District, Klamath Mts, Siskiyou Co., California, USA
  • Orofino Quarry No. 3, Orofino District, Clearwater Co., Idaho, USA
  • Oro-Fino, Summit, Shoshone Co., Idaho, USA
  • Oro Fino Tunnel, Idaho Springs District, Clear Creek Co., Colorado, USA
  • Oro - Fino Tunnels, Galena District (Henson Creek District), Hinsdale Co., Colorado, USA
  • Oro Fino vein, Sacramento District, White Pine Co., Nevada, USA
  • Oro Flame Mine (Oro Flame property; American Eagle Mine; Mormon Patent; Old Ohio Patent MS 2025; Gold Bug Mine; Sterling property; Mescal claim; American Eagle Patent; Oro Grand Patent MS 2024), Yavapai Co., Arizona, USA
  • Oro Flame Mine, Placer Co., California, USA
  • Oro Flem Mine (Oriflamme), El Dorado Co., California, USA
  • Oro Grande, Amador Co., California, USA
  • Oro Grande Au deposit, Rice Lake Gold District, Manitoba, Canada
  • Orogrande Creek Occurrence, Clearwater Co., Idaho, USA
  • Orogrande District, Idaho Co., Idaho, USA
  • Orogrande District, Otero Co., New Mexico, USA
  • Oro Grande District, San Bernardino Co., California, USA
  • Orogrande-Frisco Mine, Orogrande District, Idaho Co., Idaho, USA
  • Orogrande Gold Inc, Owyhee Co., Idaho, USA
  • Oro Grande Granite Mine, Oro Grande District, San Bernardino Co., California, USA
  • Oro Grande Group, Mosquito District, Park Co., Colorado, USA
  • Orogrande, Idaho Co., Idaho, USA
  • Oro Grande II Mine (Black Diamond; Scheerer), Oro Grande District, San Bernardino Co., California, USA
  • Oro Grande I Mine (Copper Mountain Mine), Oro Grande District, San Bernardino Co., California, USA
  • Oro Grande Mine, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Oro Grande Mine (Frenchman Patented; Platna Grande group; May Patented), Sam Powell Peak, Black Rock District, Yavapai Co., Arizona, USA
  • Oro Grande Mine, Meadow Lake District, Nevada Co., California, USA
  • Oro Grande Mine, Mono School, Humbug District, Klamath Mts, Siskiyou Co., California, USA
  • Oro Grande Mine, Shasta Co., California, USA
  • Oro Grande Mine (Sterling Mine), Drew Spring Well, Sheridan Mts, Cimarron District (Salt Well District), Cimarron & Sheridan Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
  • Oro Grande Mining Company Mine (McKeen; Cummings; Shasta), Sugar Hill, Callahan District (Scott River District), Klamath Mts, Siskiyou Co., California, USA
  • Oro Grande, Oro Grande District, San Bernardino Co., California, USA
  • Oro Grande Prospect, Greenback District (Upper Grave Creek District), Josephine Co., Oregon, USA
  • Oro Grande Prospect (Oro Grande & Eclipse), Elkhorn District (Coolidge District; Wise River District), Beaverhead Co., Montana, USA
  • Orogrande Quarry, Pierce City District, Clearwater Co., Idaho, USA
  • Oro Grande Silica Quarry, Oro Grande District, San Bernardino Co., California, USA
  • Oro Hondo Mine, Lead District, Lawrence Co., South Dakota, USA
  • Orohood pit, Macdoel, Cascade Range, Siskiyou Co., California, USA
  • Oro la Plata Mine, Iron Hill, Leadville, Leadville District, Lake Co., Colorado, USA
  • Oro Mega Mine, Riverside Co., California, USA
  • Orom hill, Halimba, Bakony Mts., Veszprém Co., Hungary
  • Oromia (Oromiya) Province, Ethiopia
  • Oro Mine, Chesterfield Co., South Carolina, USA
  • Oro Mine (Code; Oro No. 1; Oro No. 2), Sierra Co., California, USA
  • Oro Mine, El Oro de Hidalgo (El Oro; El Oro Hidalgo; Oro de Hidalgo), Mun. del Oro, Mexico, Mexico
  • Oro Mine (El Oro Mine; Golden Eagle group; Nil Desperandum Mine), Bartlett Mountain, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Oro Mine, Grimes Pass District, Boise Basin District, Boise Co., Idaho, USA
  • Oro Mine, Henry Mts, Garfield Co., Utah, USA
  • Oro Mine (Highland Silver Group), Lincoln Co., Montana, USA
  • Oro Mine, Jacala de Ledesma (Jacala), Mun. de Jacala, Hidalgo, Mexico
  • Oro mine (Ora mine), White Pine District, White Pine Co., Nevada, USA
  • Oro Mine, Pinos, Mun. de Pinos, Zacatecas, Mexico
  • Oro Mine, Southern Consolidated Mine (Oro Mine; Defiance Mine; Noonday Mine; Red Cloud Mine; Addenda Mine), Bodie, Bodie District, Mono Co., California, USA
  • Oro & Mountain View Placer, Placer Co., California, USA
  • Oromvégi Quarry, Sopron-Brennbergbánya, Soproni Mts., Győr-Moson-Sopron Co., Hungary
  • Oro Negro Group, La Plata District (California District), La Plata Co., Colorado, USA
  • Oro Negro Mining Company properties, Florence, Florence District (Blackwater District; Black Rock District), Pinal Co., Arizona, USA
  • Oro Negro Mining Co. property No. 3, Oro Negro Mining Company properties, Casa Grande, Casa Grande District, Pinal Co., Arizona, USA
  • Oro Negro Mining Co. property No. 4, Oro Negro Mining Company properties, Casa Grande, Casa Grande District, Pinal Co., Arizona, USA
  • Oro Negro Mining Co. property No. 5, Oro Negro Mining Company properties, Stanfield, Pinal Co., Arizona, USA
  • Oro Negro Mining Co. property No. 6, Oro Negro Mining Company properties, Casa Grande, Casa Grande District, Pinal Co., Arizona, USA
  • Oro; Nellie Placers, Tincup District, Gunnison Co., Colorado, USA
  • Oro-Neva Dredging Co. placers (Rae placer), Silver City District, Lyon Co., Nevada, USA
  • Oronogo (Dunham Ranch), Bear Creek District, Crook Co., Oregon, USA
  • Oronogo Field, Tri-State District, Jasper Co., Missouri, USA
  • Oronogo Mine, El Dorado Co., California, USA
  • Oronogo Mine, Oronogo Field, Tri-State District, Jasper Co., Missouri, USA
  • Oronogo Mutual mine, Oronogo Field, Tri-State District, Jasper Co., Missouri, USA
  • Orono Quartz Mine, Nevada Co., California, USA
  • Oron pit, Southern District (HaDarom District), Israel
  • Oropa, Biella Province, Piedmont, Italy
  • Oropeo, Mun. de La Huacana, Michoacan, Mexico
  • Oropeza Province, Chuquisaca Department, Bolivia
  • Oro Pino prospect, Bald Hill, Klamath Mts, Del Norte Co., California, USA
  • Oro Placer, Argenta District, Beaverhead Co., Montana, USA
  • Oro Placer Mine, Nevada Co., California, USA
  • Oro Placer, Placer Co., California, USA
  • Oro Plata Mine (Accidental Mine; Goodluck Mine; Combination Mine), Yavapai Co., Arizona, USA
  • Oro Plata Mine (Golconda Extension Mine), Todd's Basin, Cerbat, Cerbat District, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Oro Plata Mine, West Tintic District, West Tintic Mts, Juab Co., Utah, USA
  • Oro Plata Mining Company (Western Gold Corporation), Red Boy District / Granite Area, Grant Co., Oregon, USA
  • Oro Plata Placer Mine (Good Hope Patent), Yavapai Co., Arizona, USA
  • Oro Platta Prospect (Gold Quartz No. 9), San Bernardino Co., California, USA
  • Oro Plomo (Oro Plumo), Riverside Co., California, USA
  • Oroqin Banner (Elunchun Co.), Hulunbuir League (Hulunbei'er Prefecture), Inner Mongolia Autonomous Region, China
  • Oro Quarry, Chesterfield Co., South Carolina, USA
  • Oro Quay mine, New Placers District, Santa Fe Co., New Mexico, USA
  • Oro, Rico District (Pioneer District), Dolores Co., Colorado, USA
  • Oro Rico (Penon Blanco), Mariposa Co., California, USA
  • Oro Rico placers, Mohave Co., Arizona, USA
  • Orosco Mine, Devil's Cash Box ridge, Amado, Cottonwood Canyon, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
  • Orosi, Tulare Co., California, USA
  • Oro Treasure and New Year, San Bernardino Co., California, USA
  • Orotumba, Swartbooisdrif, Kunene Region, Namibia
  • O'Rourke Granite quarry, Brookline, Hillsborough Co., New Hampshire, USA
  • O'Rourke Mine, Galena District, Jo Daviess Co., Illinois, USA
  • Oro Verde District, Sangre de Cristo, Custer Co., Colorado, USA
  • Oroville District, Okanogan Co., Washington, USA
  • Oroville Dredging Company Placer, Placer Co., California, USA
  • Oroville, Feather River, Butte Co., California, USA
  • Oroville Gold Dredging Company, Butte Co., California, USA
  • Oroville meteorite, Oroville, Feather River, Butte Co., California, USA
  • Oroville, Oroville District, Okanogan Co., Washington, USA
  • Oroville to Briggs area, Feather River, Butte Co., California, USA
  • Oro Vista Area Prospects, White Mountains Rare II Area, White Mts, Mono Co., California, USA
  • Oro Vista Mine, Riverside Co., California, USA
  • Oro Vista, Shasta Co., California, USA
  • Oroweef Prospect, San Bernardino Co., California, USA
  • Oroya Brownhill Mine, Golden Mile Mines, Kalgoorlie, Kalgoorlie-Boulder City, Goldfields-Esperance region, Western Australia, Australia
  • Orøya, Larvik, Vestfold, Norway
  • Oro Y Plata, Creede District, Mineral Co., Colorado, USA
  • Oro Y Plata Mine (Oro-Plata Extension Mine; Red Wing Willard Mine; Pay Rock Mine; Silver Star Mine; Blue Wing Mine), Murphys, Esmeralda District (Murphy District; Sperry District), Calaveras Co., California, USA
  • Oro Y Plata Prospect, San Bernardino Co., California, USA
  • Oro-Y-Plate, Park Co., Montana, USA
  • Orozco Mine, Potrillos, Sierra de San Francisco, América-Sapioris (Potrillos) District, Mun. de Coneto de Comonfort, Durango, Mexico
  • Orpha May, Cripple Creek District, Teller Co., Colorado, USA
  • Orphan, American Fork District, Wasatch Mts, Utah Co., Utah, USA
  • Orphan Anne Prospect, Kern Co., California, USA
  • Orphan Boy, Beaver Creek District (Winston District), Broadwater Co., Montana, USA
  • Orphan Boy Claim, Cascade Creek, Meadow Creek District, Lake Chelan, Chelan Co., Washington, USA
  • Orphan Boy Group, Star and North Star Districts, Star Range, Beaver Co., Utah, USA
  • Orphan Boy Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Orphan Boy Mine, Riverside Co., California, USA
  • Orphan Boy Mine, Southern Cross District, Deer Lodge Co., Montana, USA
  • Orphan Boy Mine (Sunset Mine; Silver Queen Mine), Bell Butte area, Mineral Mountain District, Pinal Co., Arizona, USA
  • Orphan Boy Occurrence, Sunset, Boulder Co., Colorado, USA
  • Orphan Boy, Peru Creek Area, Argentine District, Summit Co., Colorado, USA
  • Orphan Boy Placer, Horseshoe Basin District, Park Co., Colorado, USA
  • Orphan Boy Placer, Pioneer District (Gold Creek District), Powell Co., Montana, USA
  • Orphan Boy Placer, Quigley Area, Power Co., Idaho, USA
  • Orphan Boy Prospect, Alpine Co., California, USA
  • Orphan Boy Prospect, Bay Horse District, Custer Co., Idaho, USA
  • Orphan Boy, Red Mountain District, Ouray Co., Colorado, USA
  • Orphan Boy vein, Douglas Camp, Silver Star District, Mineral Co., Nevada, USA
  • Orphan, Cripple Creek District, Teller Co., Colorado, USA
  • Orphan Girl Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Orphan Girl Mine, Kern Co., California, USA
  • Orphan Girl Mine (Part of The Butte Hill Pb-Zn Mines; Orphan Boy; Kit Carson; Anglo Saxon), Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Orphan, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Orphan Mine (El Camino Mine; Camino Mine; Monarch Mine), North Komelik area, Casa Grande District, Slate Mts, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
  • Orphan Mine (Lucky Five Mine; Patented claims MS 3275), Yavapai Co., Arizona, USA
  • Orphan Mine (Orphan Boy Mine), Alma, Alma District, Park Co., Colorado, USA
  • Orphan Mine (Orphan lode; Orphan N.P. 2004; Golden Crown Mining Co. property; Western Gold and Uranium property), Grand Canyon Village, Orphan District, South Rim, Grand Canyon National Park, Coconino Co., Arizona, USA
  • Orphan Prospect, Idaho City District, Boise Co., Idaho, USA
  • Orphan workings, Nevada Massachusetts Co., Mill City District, Pershing Co., Nevada, USA
  • Orpha Occurrence (Staatz Location No. 106), Lemhi Pass District, Beaverhead Co., Montana, USA
  • Orpierre, Laragne-Montéglin, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
  • Orpineda Mine, Barranca de Babaraga, Mun. de Guadalupe y Calvo, Chihuahua, Mexico
  • Orr Claim (Blue Moon), Inyo Co., California, USA
  • Orr Claims, Pumpkin Buttes District, Campbell Co., Wyoming, USA
  • Orrefjellet, Salangen, Troms, Norway
  • Orr et al Claims, Maybell District, Moffat Co., Colorado, USA
  • Orr Lease Occurrence, Pumpkin Buttes District, Campbell Co., Wyoming, USA
  • Orr mine, Reese River District, Lander Co., Nevada, USA
  • Orr Mine, Smyth County Barite Belt, Smyth Co., Virginia, USA
  • Orr Mine, Spotsylvania Co., Virginia, USA
  • Orrock Quarry, Kirkcaldy, Fife, Scotland, UK
  • Orroli, Cagliari Province, Sardinia, Italy
  • Orr Silica Sand Property Prospect, Anne Arundel Co., Maryland, USA
  • Orrs prospect, Dalmorton, Gresham Co., New South Wales, Australia
  • Orrs Springs, Coastal Range, Mendocino Co., California, USA
  • Orr vein, Woodford Co., Kentucky, USA
  • Orrvik, Sidensjö, Örnsköldsvik, Ångermanland, Sweden
  • Ørsdalen, Bjerkreim, Rogaland, Norway
  • Ørsdalen Mines, Ørsdalen, Bjerkreim, Rogaland, Norway
  • Ørskog, Møre og Romsdal, Norway
  • Orsk, Orenburgskaya Oblast', Southern Urals, Urals Region, Russia
  • Orşova (Orschowa; Orsowa), Mehedinti Co., Romania
  • Ørsta, Møre og Romsdal, Norway
  • Ortabel, Haymana, Ankara Province, Central Anatolia Region, Turkey
  • Ortano Islet, Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
  • Ortano Mine, Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
  • Ortau, Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan
  • Ortberg (Birnbacher), Naßfeld valley, Gastein valley, Hohe Tauern, Salzburg, Austria
  • Ortbergschartl, Naßfeld valley, Gastein valley, Hohe Tauern, Salzburg, Austria
  • Ortega Mine, Mount Bullion, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA
  • Ortega Mine (Old Dominion Mine), Rancho Santa Margarita, Santa Ana Mts, Orange Co., California, USA
  • Ortenberg, Offenburg, Black Forest, Baden-Württemberg, Germany
  • Ørtevann Mine, Rana Mines, Dunderlandsdalen, Rana, Nordland, Norway
  • Orthite No. 1 & Sunset Groups, Long Scraggy, Jefferson Co., Colorado, USA
  • Orthopyroxenite outcrop, Laouni, Ahaggar Mts (Hoggar Mts), Tamanghasset Province, Algeria
  • Orth Placer, Jacksonville District, Jackson Co., Oregon, USA
  • Ortigueira, A Coruña (La Coruña), Galicia, Spain
  • Orting Quarry, Orting, Pierce Co., Washington, USA
  • Ortisei (St Ulrich), Siusi Alp (Seis Alp), Gardena Valley (Gröden Valley), Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
  • Ortiz Mine, Golden, Old Placers District, Santa Fe Co., New Mexico, USA
  • Ortiz vein (Ortiz mine), Capillitas Mine, Andalgalá Department, Catamarca, Argentina
  • Ortles-Cevedale Group, Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
  • Ortles-Gran Zebrù (Ortler-Königspitze), Ortles-Cevedale Group, Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
  • Ortmayer Lease, Uravan District, San Miguel Co., Colorado, USA
  • Orto di Donna, Minucciano, Apuan Alps, Lucca Province, Tuscany, Italy
  • Orton Gulch Placer Mine, Canyon Mountain, Cecilville, Klamath Mts, Siskiyou Co., California, USA
  • Ortonovo, La Spezia Province, Liguria, Italy
  • Orton Quarry, Greene Co., Illinois, USA
  • Ortra Mine, Roşia Montanã (Verespatak; Vöröspatak; Goldbach), Alba Co., Romania
  • Orudong Mine, Gyeonggi-do (Kyonggi-do), South Korea
  • Orum Mine (Woodland), El Dorado Co., California, USA
  • Oruro City, Cercado Province, Oruro Department, Bolivia
  • Oruro Department, Bolivia
  • Oruro Mine, Cuchillo Parado, Mun. de Coyame, Chihuahua, Mexico
  • Orust, Bohuslän, Sweden
  • Oruzgan Province (Uruzgan Province; Oruzghan Province; Uruzghan Province), Afghanistan
  • Oruzgan W-Bi deposit, Khas Uruzgan District, Oruzgan Province (Uruzgan Province; Oruzghan Province; Uruzghan Province), Afghanistan
  • Orvault, Nantes, Loire-Atlantique, Pays de Loire, France
  • Örvényes, Balaton Uplands, Veszprém Co., Hungary
  • Orvetta and Little Ruby Tunnel, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
  • Orville Davis Granite Quarry, Marathon Co., Wisconsin, USA
  • Orxeta, Alicante, Valencian Community, Spain
  • Oryx prospect, Lusaka Province, Zambia
  • Orzel Bialy Mine, Bytom (Beuthen) District, Upper Silesia (Śląskie), Poland
  • Osage Chief Mine (Crissman Mine), Greenhorn District (Austin District), Lewis and Clark Co., Montana, USA
  • Osage Co., Missouri, USA
  • Osage Occurrence; Clay Spur Quarries, Upton, Weston Co., Wyoming, USA
  • Osage prospect, Julian, Julian District, San Diego Co., California, USA
  • Osage, Pumpkin Buttes District, Campbell Co., Wyoming, USA
  • Osaka Prefecture, Kinki region, Honshu Island, Japan
  • Osamu Utsumi mine (Campo do Cercado), Caldas, Poços de Caldas plateau, Minas Gerais, Brazil
  • Osanitza Mine, Balkan Mts., Serbia
  • Osa power station, Åmot, Hedmark, Norway
  • Osa Quarry, La Serena Valley, Badajoz, Extremadura, Spain
  • Osa quarry, Osteria dell'Osa, Rome, Rome Province, Latium, Italy
  • Osarizawa mine, Kazuno City, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Osawa, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
  • O. S. B. Dolomite Quarry, Trempealeau Co., Wisconsin, USA
  • Osberg mine, Portsmouth group, Cuyuna North Range, Crow Wing Co., Minnesota, USA
  • Osborn Creek Mine, Nome District, Nome Borough, Alaska, USA
  • Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
  • Osborne Co., Kansas, USA
  • Osborne Copper Mine, Lodi District, Nye Co., Nevada, USA
  • Osborne Cu-Au deposit, Selwyn District, Mount Isa - Cloncurry area, Queensland, Australia
  • Osborne Hill Placer Mine, Trinity Co., California, USA
  • Osborne Lake Mine, Snow Lake District, Manitoba, Canada
  • Osborne Mine, Bear Valley Mining District, San Bernardino Co., California, USA
  • Osborne Mine, Mt Olive, Mt Olive Township, Morris Co., New Jersey, USA
  • Osborne Mine, Westview District (Willow Creek District; Pearl District; Rock Creek District), Boise Co., Idaho, USA
  • Osborne Prospect, Grayson Co., Virginia, USA
  • Osborne Quarry, Alstead, Cheshire Co., New Hampshire, USA
  • Osborne Quarry, Calhoun Co., Illinois, USA
  • Osborne Soapstone quarry, Blandford, Hampden Co., Massachusetts, USA
  • Osborne Well, Cienega District, Buckskin Mts, La Paz Co., Arizona, USA
  • Osborn Hill, Birmingham Township, Chester Co., Pennsylvania, USA
  • Osborn Hill Mine (Osborn Hill vein; Woodberry Mine), Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Osborn Lake (McIntyre farm), De Kalb, De Kalb Township, St. Lawrence Co., New York, USA
  • Osborn Mesa Prospect, Sweetwater Co., Wyoming, USA
  • Osborn Mine (Defiance Mine), Rye, Payson District (Green Valley District), Gila Co., Arizona, USA
  • Osborn Mine, Russell Co., Virginia, USA
  • Osborn Prospect (Schaler prospect), Smyth Co., Virginia, USA
  • Osborn Prospect, Shady Valley District, Johnson Co., Tennessee, USA
  • Osbourne Wash prospect, Osborne Wash, Alamo District, Buckskin Mts, La Paz Co., Arizona, USA
  • O. S. B. Shale Quarry, Trempealeau Co., Wisconsin, USA
  • Osburn, Coeur d'Alene District, Shoshone Co., Idaho, USA
  • Osby gneissgranite, Osby, Kristianstad, Skåne, Sweden
  • Osby, Kristianstad, Skåne, Sweden
  • Osby quarry, Osby, Kristianstad, Skåne, Sweden
  • Oscar Anderson, Placer Co., California, USA
  • Oscar Ashe Mine, Jackson Co., North Carolina, USA
  • Oscar Claim, Moyie - Yaak District, Boundary Co., Idaho, USA
  • Oscar Creek District, Josephine Co., Oregon, USA
  • Oscar Creek Placer (Bishop & Sturdevant; Jewell & Moore Group), Applegate District, Josephine Co., Oregon, USA
  • Oscar Creek Placer (Bishop & Sturdevant; Jewell & Moore), Oscar Creek District, Josephine Co., Oregon, USA
  • Oscar Helsing Prospect, Yogo, Judith Basin Co., Montana, USA
  • Oscar II Land, Spitsbergen, Svalbard, Norway
  • Oscar Kesti Quarry, Rocklin, Placer Co., California, USA
  • Oscar Martin Feldspar Prospect, Bryson City Feldspar District, Swain Co., North Carolina, USA
  • Oscar No. 1, Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
  • Oscar Nos. 1 - 3, Boise Co., Idaho, USA
  • Oscar Placer, Tuolumne Co., California, USA
  • Oscar Prospect, Fortymile District, Southeast Fairbanks Borough, Alaska, USA
  • Oscar Queen Mine, Jackson Co., North Carolina, USA
  • Oscars Mine, Mofjellet, Rana, Nordland, Norway
  • Oscar Sneed Prospect, Pontotoc Co., Mississippi, USA
  • Oscar Stanislaus River, Calaveras Co., California, USA
  • Oscar Wager prospect, Yavapai Co., Arizona, USA
  • Oscar Weaver and Ella Meadows Prospect, James River-Roanoke River Manganese District, Buckingham Co., Virginia, USA
  • Oscar Wehrend Mine, Royston District, Nye Co., Nevada, USA
  • Oscar West Prospect, Fortymile District, Southeast Fairbanks Borough, Alaska, USA
  • Oscawana Corners, Putnam Valley Township, Putnam Co., New York, USA
  • Osceola Amygdaloid, Osceola, Houghton Co., Michigan, USA
  • Osceola Co., Michigan, USA
  • Osceola District, Thorpe Hills, Tooele Co., Utah, USA
  • Osceola District, White Pine Co., Nevada, USA
  • Osceola, Gold Hill District, Boulder Co., Colorado, USA
  • Osceola, Houghton Co., Michigan, USA
  • Osceola Mine, Cunningham Gulch, Animas District, San Juan Co., Colorado, USA
  • Osceola Mine (Franks & Moneton Mine; Franks and Monoton Mine), Trooks Flat, Liberty District, Klamath Mts, Siskiyou Co., California, USA
  • Osceola Mine, Ophir District, San Miguel Co., Colorado, USA
  • Osceola Mine (Osceola group; Red Star Mine; Colorado Mine; Yellow-Jacket Mine; Yellow Jacket Mine), Alleghany, Forest District (Alleghany; Chips Flats; Minnesota), Sierra Co., California, USA
  • Osceola Mine, Osceola, Houghton Co., Michigan, USA
  • Osceola Mine, Rough & Ready, Nevada Co., California, USA
  • Osceola Mine, Tonto Basin District, Yavapai Co., Arizona, USA
  • Osceola National Forest Prospect (MRDS - 10119133), North Florida Phosphate District, Columbia Co., Florida, USA
  • Osceola No. 1 (Centennial Crosscut; Tamarack Crosscut; Calumet and Hecla Crosscut), Osceola Mine, Osceola, Houghton Co., Michigan, USA
  • Osceola No. 2, Osceola Mine, Osceola, Houghton Co., Michigan, USA
  • Osceola No. 3, Osceola Mine, Osceola, Houghton Co., Michigan, USA
  • Osceola No. 5, Osceola Mine, Osceola, Houghton Co., Michigan, USA
  • Osceola (Osceolia), Star and North Star Districts, Star Range, Beaver Co., Utah, USA
  • Osceola Prospect, Amador Co., California, USA
  • Osdick Group (Skylark; Big Ben), Atolia, Atolia District, San Bernardino Co., California, USA
  • Ose, Bygland, Aust-Agder, Norway
  • Oseiskoye Levoberazhie Au deposit, Plast, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
  • Osennee Cu-Mo-Au deposit, Magadanskaya Oblast', Far-Eastern Region, Russia
  • Osennee deposit, Dombarov District, Orenburgskaya Oblast', Southern Urals, Urals Region, Russia
  • Osenovlak deposit, Sofiya Oblast (Sofia Oblast), Bulgaria
  • Ósfjall, Breiðdalsvík, Suður-Múlasýsla, Iceland
  • Osgoode Township, Carleton Co., Ontario, Canada
  • Osgood graphite mine, Nelson, Cheshire Co., New Hampshire, USA
  • Osgood Mine, Georgetown, Essex Co., Massachusetts, USA
  • Osgood Mine (Lucky Strike Mine), Yreka, Siskiyou Co., California, USA
  • Osgood Placer Group, Lincoln District, Lewis and Clark Co., Montana, USA
  • Osgood Prospect, Butte Co., California, USA
  • O Shaft, Lamartine District, Clear Creek Co., Colorado, USA
  • Oshana Region, Namibia
  • O'Shaughnessy Prospect, Pend Oreille District, Bonner Co., Idaho, USA
  • O'Shay Chloride (Dan S Chloride; O'Shay Upper Workings), Trinity Co., California, USA
  • Oshetna River Prospect, Valdez Creek District, Matanuska-Susitna Borough, Alaska, USA
  • Oshibedani, Kobe city, Hyogo prefecture, Kinki region, Honshu Island, Japan
  • Oshigenai mine, Odate, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Oshima Mine, Wada and Oshima-mura, Oi-gun, Fukui Prefecture, Chubu Region, Honshu Island, Japan
  • Oshima peninsula, Hokkaido, Japan
  • Oshio orebody, Tashiro mine, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan
  • Oshirabetsu, Hiroo-mura, Hiroo-gun, Tokachi Province, Hokkaido, Japan
  • Oshkosh Mine, Monarch District, Chaffee Co., Colorado, USA
  • Osh Oblast, Kyrgyzstan
  • Osiek mine, Tarnobrzeg, Podkarpackie, Poland
  • Osier Creek Placer, Moose Creek District, Clearwater Co., Idaho, USA
  • Osier, Rio Arriba Co., New Mexico, USA
  • Ősi Hill, Pákozd, Velencei Mts., Fejér Co., Hungary
  • Osijek-Baranja County, Croatia
  • Osikonmäki (Osikko), Rantasalmi, Eastern Finland Region, Finland
  • Osikovo deposit, Septemvri mine (Deveti Septemvri mine), Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria
  • Osilo, Sassari Province, Sardinia, Italy
  • O. Sincox Prospect, Galena District, Jo Daviess Co., Illinois, USA
  • Osinki, Samaraskaya Oblast' (Samara Oblast'), Povolzhsky Region, Russia
  • Osiola Claim, Squaw Creek District, Okanogan Co., Washington, USA
  • Osirio Mine (Osiris Property), Tarryall Mountains Area, Jefferson Co., Colorado, USA
  • Ösjöberg Mine, Hjulsjö, Hällefors, Västmanland, Sweden
  • Oskaloosa coal mines, Mahaska Co., Iowa, USA
  • Oskaloosa, Mahaska Co., Iowa, USA
  • Oskaloosa Occurrence, Mount Pisgah District, Bonneville Co., Idaho, USA
  • Oskar Mine, Copper mines, Marsberg, Sauerland, North Rhine-Westphalia, Germany
  • Oskar Mine, Lorscheid, Neuwied, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
  • Oskarshamn, Småland, Sweden
  • Oskawalik River Occurrence, Aniak District, Bethel Borough, Alaska, USA
  • Öskemen (Ust'-Kamenogorsk), Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan
  • Oskol Fe deposit, Kursk Manet Anomaly group, Belgorodskaya Oblast', Central Region, Russia
  • Oskoloosa Mine, Ellsworth District, Granite Wash Mts, La Paz Co., Arizona, USA
  • Osland, Moi, Gjesdal, Rogaland, Norway
  • O Slap Chmar, Samlot field, Bătdâmbâng (Khet Batdambang; Battambang) Province, Cambodia
  • Oslavany, South Moravia Region, Moravia (Mähren; Maehren), Czech Republic
  • Oslebakkholmen, Nøtterøy, Vestfold, Norway
  • Oslofjord Tunnel, Hurum, Buskerud, Norway
  • Oslo, Norway
  • Osmania University campus, Hyderabad, Hyderabad District, Andhra Pradesh, India
  • Osmer Gold Mine, West Burro Mts, Burro Mountains District, Grant Co., New Mexico, USA
  • Osmundsberget, Rättvik, Dalarna, Sweden
  • Osmun Mine, McIntyre Ward, Thunder Bay (City), Thunder Bay District, Ontario, Canada
  • Osmun Mine (Osmun-Robeson Mine; Ahles Mine), Oxford Furnace, Oxford, Warren Co., New Jersey, USA
  • Osnabrücker Hütte, Großelend valley, Ankogel group, Hohe Tauern, Carinthia, Austria
  • Osnabrück, Lower Saxony, Germany
  • Osobyi Uchastok V occurrence, Karatau Range, Southern Kazakhstan Province (Ongtüstik Qazaqstan Oblysy; Yuzhno-Kazakhstanskaya Oblast'), Kazakhstan
  • Oso claim, Mule Hoof Bend area (Oxbow Bend area), Salt River, Salt River District, Gila Co., Arizona, USA
  • Oso Claim, Nogal District, Lincoln Co., New Mexico, USA
  • Osogovo Cu deposit, Delchevo, Republic of Macedonia
  • Osogovo Mts, Kyustendil Oblast, Bulgaria
  • Osojnik, Blegoš, Selca valley, Slovenia
  • Oso, Mariposa Co., California, USA
  • Oso mine, Delamar District, Lincoln Co., Nevada, USA
  • Osona, Barcelona, Catalonia, Spain
  • Osona, Girona (Gerona), Catalonia, Spain
  • Oso Prospect, Chichagof District, Skagway-Hoonah-Angoon Borough, Alaska, USA
  • Oso prospect, Manhattan District, Nye Co., Nevada, USA
  • Osorezan, Mutsu City, Shimokita peninsula, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Osor Mines, Osor, La Selva, Girona (Gerona), Catalonia, Spain
  • Osorno Province, Los Lagos Region, Chile
  • Osoyoos Lake, Oroville, Oroville District, Okanogan Co., Washington, USA
  • Osoyoos Mining Division, British Columbia, Canada
  • Ospedalaccio Pass, Sassalbo, Fivizzano, Massa-Carrara Province, Tuscany, Italy
  • Ospenkopf Mt. - Wolfsgrube pass area, Lautenbach, Lauch Valley, Haut-Rhin, Alsace, France
  • Osquich pass, Mauléon, Saint-Jean-Pied-de-Port, Pyrénées-Atlantiques, Aquitaine, France
  • Ossa river, Sillaro Valley, San Clemente, Bologna province, Emilia-Romagna, Italy
  • Ossasco, Bedretto Valley, Leventina, Ticino (Tessin), Switzerland
  • Ossau valley, Pyrénées-Atlantiques, Aquitaine, France
  • Osseo Sandstone Deposit No. 1, Trempealeau Co., Wisconsin, USA
  • Osseo Sandstone Quarry No. 1, Trempealeau Co., Wisconsin, USA
  • Osseo Shale & Sandstone Quarry, Trempealeau Co., Wisconsin, USA
  • Ossining (Sing Sing), Westchester Co., New York, USA
  • Ossipee Aggregates Corp. quarry, Ossipee, Carroll Co., New Hampshire, USA
  • Ossipee, Carroll Co., New Hampshire, USA
  • Ossipee Lake locality, Freedom, Carroll Co., New Hampshire, USA
  • Oßling Quarry, Kamenz, Oberlausitz, Saxony, Germany
  • Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
  • O.S. Still Ranch property (Placer Creek operations), Placer Creek, La Panza, La Panza District, La Panza Mts, San Luis Obispo Co., California, USA
  • O. S. Storrs, Upper Union District (Empire District), Clear Creek Co., Colorado, USA
  • Östanå, Gränna, Jönköping, Småland, Sweden
  • Ostander Creek Prospect, Blackbird District, Lemhi Co., Idaho, USA
  • Östanmoss mine, Norberg, Västmanland, Sweden
  • Øståsen, Grua Mining District, Lunner, Oppland, Norway
  • Øståsen - Hadeland, Lunner, Oppland, Norway
  • Ostego Mine, Sierra Co., California, USA
  • Ostein farm, Willer-sur-Thur, Thur Valley (Thann Valley), Haut-Rhin, Alsace, France
  • Østerådalen, Tvedestrand, Aust-Agder, Norway
  • Österåker, Uppland, Sweden
  • Østerås prospect, Tvedestrand, Aust-Agder, Norway
  • Österbergsgruvan, Tunaberg Cu-Co Ore Field, Tunaberg, Nyköping, Södermanland, Sweden
  • Österby, St. Skedevi, Säter, Dalarna, Sweden
  • Osterfeld Mine, Oberhausen, Ruhr Coal Mining area, North Rhine-Westphalia, Germany
  • Osterfest Mine, Kleinrückerswalde, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany
  • Östergötland, Sweden
  • Østerholt, Gjerstad, Aust-Agder, Norway
  • Østerholtheia, Gjerstad, Aust-Agder, Norway
  • Osterkreuz adit, Schottenberg, Buchholz, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany
  • Osterlamm Mine, Dippoldiswalde, Freiberg District, Erzgebirge, Saxony, Germany
  • Osterlamm Mine, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany
  • Osterlamm Mine, Hammerbrücke, Tannenbergsthal, Vogtland, Saxony, Germany
  • Osterlamm Mine, Ochsenkopf, Bockau District, Aue, Erzgebirge, Saxony, Germany
  • Osterlamm Mine, Schneeberg District, Erzgebirge, Saxony, Germany
  • Osterlamm Mine, Waschleithe, Schwarzenberg District, Erzgebirge, Saxony, Germany
  • Österlengruvan nr 6, Smedstorp, Tomelilla, Skåne, Sweden
  • Osterly Prospect, Baldy Mountain District, Beaverhead Co., Montana, USA
  • Öster mine, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
  • Osterode, Lower Saxony, Germany
  • Østerøya, Sandefjord, Vestfold, Norway
  • Osterøy, Hordaland, Norway
  • Öster Silvberg, Säter, Dalarna, Sweden
  • Østerskov, Fyns Amt, Fyn, Southern Denmark, Denmark
  • Östersund, Jämtland, Sweden
  • Osterud & Duncanson Mine, Fillmore Co., Minnesota, USA
  • Osterwitz, Deutschlandsberg, Koralpe, Styria, Austria
  • Østfold, Norway
  • Østhagan limestone and Fe mines, Grua Mining District, Lunner, Oppland, Norway
  • Östhammar, Uppland, Sweden
  • Osthammeren, Feragen, Røros, Sør-Trøndelag, Norway
  • Østland, Kragerø, Telemark, Norway
  • Ostlund Pit, Campbell Co., Wyoming, USA
  • O. Stockdale Mine, Fillmore Co., Minnesota, USA
  • Östraby, Simrishamn, Skåne, Sweden
  • Östra Göinge, Skåne, Sweden
  • Östra Hårdmalmen orebody, Falun Mine, Falun, Dalarna, Sweden
  • Östra Högkulla Mine, Norsjö, Västerbotten, Sweden
  • Östra Kråkåsen, Finnshytteberg ore field (Finnshytte), Nordmark district, Filipstad, Värmland, Sweden
  • Östra Ljungby, Klippan, Skåne, Sweden
  • Östra Nöbbelöv, Simrishamn, Skåne, Sweden
  • Östra Tommarp, Simrishamn, Skåne, Sweden
  • Ostrava-Karviná Coal Area, Moravia-Silesia Region, Moravia (Mähren; Maehren), Czech Republic
  • Ostrava, Moravia-Silesia Region, Moravia (Mähren; Maehren), Czech Republic
  • Østre Brattholmen, Langesundsfjorden, Porsgrunn, Telemark, Norway
  • Ostředek (Mittelberg), Šumperk (Mährisch Schönberg), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Ostredok hill, Jamnícka Valley, Jamník, Liptovský Mikuláš Co., Žilina Region, Slovakia
  • Østre Kjørstad quarry, Kjørstad (Kjørrestad), Bamble (Bamle), Telemark, Norway
  • Østre Rød Feldspar Quarries, Søndeled, Risør, Aust-Agder, Norway
  • Østre Toten, Oppland, Norway
  • Ostrich Mine (Gold Pen Mine; Bartlett Mine; Skunk Mine), Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
  • Ostrine Quarry (Ostrine; Inc.), Monroe Co., Wisconsin, USA
  • Ostrom, Leadville District, Lake Co., Colorado, USA
  • Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Ostrowiec Świętokrzyski District, Świętokrzyskie Mts (Holy Cross Mts), Świętokrzyskie, Poland
  • Ostružná (Spornhau), Jeseník, Olomouc Region, Moravia (Mähren; Maehren), Czech Republic
  • Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
  • Ostwig Mine, Nuttlar, Bestwig, Meschede, Sauerland, North Rhine-Westphalia, Germany
  • Osugahara mine, Onsen-cho, Minoo, Osaka Prefecture, Kinki Region, Honshu Island, Japan
  • O'Sullivans prospect, Dalmorton, Gresham Co., New South Wales, Australia
  • Osumi Peninsula, Kagoshima Prefecture, Kyushu Region, Japan
  • Osuzu mine, Tohgoh-cho, Miyazaki Prefecture, Kyushu Region, Japan
  • Ósva Valley, Telkibánya, Zemplén Mts. (Tokaj Mts.), Borsod-Abaúj-Zemplén Co., Hungary
  • Oswald claims, Queen City District, Nye Co., Nevada, USA
  • Oswaldo No. 1 Mine, Hanover-Fierro District, Grant Co., New Mexico, USA
  • Oswaldo No. 2 Mine, Hanover-Fierro District, Grant Co., New Mexico, USA
  • Oswald Placer Mine (Big East Fork), Trinity Co., California, USA
  • Oswego Co., New York, USA
  • Oswego Iron Mine (Oswego Iron Company; Oswego Iron Mine Prosser Mine; Oregon Iron Company), Clackamas Co., Oregon, USA
  • Oswego Prospect, Mineral Hill District, Blaine Co., Idaho, USA
  • Oswestry, Shropshire, England, UK
  • Oszicsinszki Hill, Mátraszentlászló, Mátra Mts., Heves Co., Hungary
  • Otago peninsula, Otago, South Island, New Zealand
  • Otago, South Island, New Zealand
  • Otai mine, Tashiro, Akita Prefecture, Tohoku Region, Honshu Island, Japan
  • Otake geothermal field, Oita prefecture, Kyushu Region, Japan
  • Otakigawa, Nagano Prefecture, Chubu Region, Honshu Island, Japan
  • Otakiyama, Tokushima prefecture, Shikoku Island, Japan
  • Otamo dolomite quarry, Siikainen, Western and Inner Finland Region, Finland
  • Otani Mine, Gyojayama, Kameoka City, Kyoto Prefecture, Kinki Region, Honshu Island, Japan
  • Otani Mine, Mikawa-mura, Aga-machi (Higashi-Kanbara-gun), Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Otaniyama mine, Yamada, Shimohei-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Otanmäki Mine, Otanmäki, Kajaani, Northern Finland Region, Finland
  • Otaru-Matsukura (Otarumatsukura) deposit, Shiribeshi Province, Hokkaido, Japan
  • Otava river, Sušice (Schüttenhofen), Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otavi, Otjozondjupa Region, Namibia
  • Otavi prospect, Otavi, Otjozondjupa Region, Namibia
  • Otay Bentonite deposit, Munyon, Imperial Co., California, USA
  • Otay Mesa, San Diego, San Diego Co., California, USA
  • Otay Mts, San Diego Co., California, USA
  • Otay, San Diego Co., California, USA
  • Otego, Nederland District, Boulder Co., Colorado, USA
  • Otela Mine, Topia, Mun. de Topia, Durango, Mexico
  • Otera Incline, Uravan District, San Miguel Co., Colorado, USA
  • Otero Co., Colorado, USA
  • Otero Co., New Mexico, USA
  • Otero Placers 1 and 2, Grayback District (Russell District), Costilla Co., Colorado, USA
  • Oteros Canyon, Monterde, Mun. de Guazapares, Chihuahua, Mexico
  • Oterstrand, Gildeskål, Nordland, Norway
  • Otha Bell Mine, Wilkinson Co., Georgia, USA
  • Othello mine, Cooks Peak District (Cooke's Peak District), Luna Co., New Mexico, USA
  • Othrys (Othris) Mt ophiolite complex, Lamia, Fthiótis Prefecture, Sterea Hellas Department, Greece
  • Otilia mine, La Paz Department, Bolivia
  • Otis Basin Diatomite Occurrence, Harney Co., Oregon, USA
  • Otis, Berkshire Co., Massachusetts, USA
  • Otisco Mine, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
  • Otish Mountains U deposit, Otish Mts, Baie-James, Nord-du-Québec, Québec, Canada
  • Otish Mts, Baie-James, Nord-du-Québec, Québec, Canada
  • Otis Ledge, Meadow Lake, Meadow Lake District, Nevada Co., California, USA
  • Otis, San Bernardino Co., California, USA
  • Otisse Mine (Welsh Mine), Mickle Township, Elk Lake area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
  • Otis Shaft, Alma District, Park Co., Colorado, USA
  • Otis Shelton Prospect, Stokes Co., North Carolina, USA
  • Otivar, Salobreña, Granada, Andalusia, Spain
  • Otjhowe (Otjowe), Kaokoveld Plateau, Kunene Region, Namibia
  • Otjihase Mine, Von Francois Farm 60, Windhoek District, Khomas Region, Namibia
  • Otjihorongo area, Omaruru District, Erongo Region, Namibia
  • Otjikoto (Oshikoto) Region, Namibia
  • Otjikoto prospect, Otjikoto (Oshikoto) Region, Namibia
  • Otjima, Omaruru, Damaraland District, Kunene Region, Namibia
  • Otjimbingwe Farm 104, Karibib District, Erongo Region, Namibia
  • Otjimboyo East, Karibib District, Erongo Region, Namibia
  • Otjinamewa (Otjionamewa), Brandberg Area, Erongo Region, Namibia
  • Otjindeka, Kaokoveld Plateau, Kunene Region, Namibia
  • Otjisongati Mines (Otjizonjati Mine), Okamuvia Farm 144, Windhoek District, Khomas Region, Namibia
  • Otjitheka, Kaokoveld Plateau, Kunene Region, Namibia
  • Otjivalunda Pan, Kaokoveld Plateau, Kunene Region, Namibia
  • Otjiwalundo salt pan, Kunene Region, Namibia
  • Otjiwarongo District, Otjozondjupa Region, Namibia
  • Otjoruharui Farm 251, Okahandja District, Otjozondjupa Region, Namibia
  • Otjosondu, Otjozondjupa Region, Namibia
  • Otjozondjupa Region, Namibia
  • Otjua Farm 37, Karibib District, Erongo Region, Namibia
  • Otjua Mine, Otjua Farm 37, Karibib District, Erongo Region, Namibia
  • Otjua tungsten prospect, Omaruru District, Erongo Region, Namibia
  • Otmar quarry, Stav, Nová Paka (Neupaka), Hradec Králové Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otoe Co., Nebraska, USA
  • Otogafuchi mine, Hinokage-cho, Miyazaki prefecture, Kyushu Region, Japan
  • Otome mine, Makioka-cho, Yamanashi City, Kinpuzan district, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Otome mine (Mitake mine), Kofu City, Kinpuzan district, Yamanashi prefecture, Chubu region, Honshu Island, Japan
  • Otomezaka mine (Otomezaka deposit), Otome mine (Mitake mine), Kofu City, Kinpuzan district, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Otoña Mine, Heróica Caborca, Mun. de Caborca, Sonora, Mexico
  • O'Toole deposit, Fortaleza de Minas, Minas Gerais, Brazil
  • O'Toole prospect, Washington District, Nye Co., Nevada, USA
  • Ototo Island (Otoutojima), Chichijima Group, Ogasawara Islands, Tokyo Prefecture, Japan
  • Otov, Domažlice (Taus), Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otov II pegmatite, Otov, Domažlice (Taus), Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otov I pegmatite, Otov, Domažlice (Taus), Plzeň Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otoyo mine, Karumai, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Otoyo mine, Yamada, Shimohei-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Otra Estrella claim, Ejido Esperanza, Mun. de Chihuahua, Chihuahua, Mexico
  • Otramina mine, Mun. de Titiribí, Antioquia Department, Colombia
  • Otranto, Lecce Province, Puglia, Italy
  • Otratnaya Nunatak, Northern Gruber Mts, Queen Maud Land (Dronning Maud Land), Eastern Antarctica, Antarctica
  • Otravaara area (Kuusjärvi), Eno, Joensuu, Eastern Finland Region, Finland
  • Otrøy (Otrøya; Otterøy), Midsund, Møre og Romsdal, Norway
  • Otsalar Cu-Ag-Sb-Hg deposit, Altai Republic (Gorno-Altayskaya Autonomous Oblast'), Western-Siberian Region, Russia
  • Otsego Co., New York, USA
  • Otsuchi mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan
  • Otsue mine (Sankinkogyo mine), Hiroshima prefecture, Chugoku region, Honshu Island, Japan
  • Otsuki City, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Otta, Nord-Fron, Oppland, Norway
  • Ottarp, Helsingborg, Skåne, Sweden
  • Ottarp, Stoby, Hässleholm, Skåne, Sweden
  • Otta, Sel, Oppland, Norway
  • Ottauquechee River, Bridgewater, Windsor Co., Vermont, USA
  • Ottaviano, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
  • Ottawa, Alice District, Clear Creek Co., Colorado, USA
  • Ottawa Co., Kansas, USA
  • Ottawa Co., Michigan, USA
  • Ottawa Co., Ohio, USA
  • Ottawa Co., Oklahoma, USA
  • Ottawa District, Marysville District, Lewis and Clark Co., Montana, USA
  • Ottawa, Franklin Co., Kansas, USA
  • Ottawa General Hospital Landscaping occurrence, Gluocester Township, Carleton Co., Ontario, Canada
  • Ottawa, Gloucester Co., Carleton Co., Ontario, Canada
  • Ottawa Industries Sand Pit (Ottawa Industries Sand Pit; Reynolds Quarry), La Salle Co., Illinois, USA
  • Ottawa Lake Quarry (Michigan Stone Company), Monroe Co., Michigan, USA
  • Ottawa mine, Montreal, Iron Co., Wisconsin, USA
  • Ottawa Mine (Prentice Property), Marysville District, Lewis and Clark Co., Montana, USA
  • Ottawa Shale Pit, La Salle Co., Illinois, USA
  • Ottawa Silica Company Quarry (Rockwood Quarry), Rockwood, Wayne Co., Michigan, USA
  • Ottawa Stone Co. Inc. quarry, Blanchard township, Putnam Co., Ohio, USA
  • Ottawa Valley Crushed Stone Quarry, Gloucester Co., Carleton Co., Ontario, Canada
  • Otte, Central City District, Gilpin Co., Colorado, USA
  • Ottenhäuser Grund, Schweinfurt, Franconia, Bavaria, Germany
  • Ottenhöfen, Oberkirch, Black Forest, Baden-Württemberg, Germany
  • Ottenschlag, Waldviertel, Lower Austria, Austria
  • Ottensheim, Linz, Upper Austria, Austria
  • Ottenthal adit, Nöckelberg District, Schwarzleograben, Hütten, Leogang, Saalfelden, Salzburg, Austria
  • Otterbach, Palatinate, Rhineland-Palatinate, Germany
  • Otterbein Quarry, Müs, Großenlüder, Fulda, Hesse, Germany
  • Otterbühl, Göpfersgrün, Wunsiedel, Fichtelgebirge, Franconia, Bavaria, Germany
  • Otter Creek copper mine (MRDS - 10082906), Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Otter Creek; Florence Gulch Mine, Nome District, Nome Borough, Alaska, USA
  • Otter Creek Mines, Iditarod District, Yukon-Koyukuk Borough, Alaska, USA
  • Otter Creek Prospect, Koyuk District, Nome Borough, Alaska, USA
  • Otter Creek Shale Quarry, Dunn Co., Wisconsin, USA
  • Otter Creek, West Union, Fayette Co., Iowa, USA
  • Otter Crest Quarry, Lincoln Co., Oregon, USA
  • Otterdale, Chesterfield Co., Virginia, USA
  • Otter Hill Mine (American Asbestos Company Mine), Bedford Co., Virginia, USA
  • Otter Juan mine, Kambalda Nickel deposit, Kambalda, Coolgardie Shire, Western Australia, Australia
  • Otter Lake Occurrence, Bristol Bay District, Lake and Peninsula Borough, Alaska, USA
  • Otter Lake, Pontiac RCM, Outaouais, Québec, Canada
  • Otter Lake, Richland Co., South Carolina, USA
  • Otter Limestone Quarry, Monroe Co., Michigan, USA
  • Otterness Quarry (Roverud Construction Company), Fillmore Co., Minnesota, USA
  • Otter Point Beach Occurrence, Beach Area, Curry Co., Oregon, USA
  • Otter Prospect, Tulare Co., California, USA
  • Otter River, Campbell Co., Virginia, USA
  • Ottershagen Prospect (Otterhagen Lode), Keystone District, Pennington Co., South Dakota, USA
  • Otter Shoot Nickel mine, Otter Juan mine, Kambalda Nickel deposit, Kambalda, Coolgardie Shire, Western Australia, Australia
  • Otterson Limestone Quarry, Gaffney Area, Cherokee Co., South Carolina, USA
  • Otterthal, Industrieviertel, Lower Austria, Austria
  • Ottery Mine, Tent Hill, Gough Co., New South Wales, Australia
  • Otterys deposit, Torrington district, Gough Co., New South Wales, Australia
  • Otterys prospect, Torrington district, Gough Co., New South Wales, Australia
  • Otteskoop, Marico District, Northwest Province, South Africa
  • Otteson Granite quarry, Hooksett, Merrimack Co., New Hampshire, USA
  • Otting, Wemding, Ries Crater, Nördlingen, Swabia, Bavaria, Germany
  • Ottmarsbocholt, Münsterland, North Rhine-Westphalia, Germany
  • Ottner Alp (Traholz), Brixen im Thale, Kitzbühel Alps, North Tyrol, Tyrol, Austria
  • Otto-Bullion Mine (Otto Mine), Middletown, East Mayacmas District, Mayacmas Mts (Mayacamas Mts), Lake Co., California, USA
  • Otto Jean Kelly Quarry (Kelly Wiegel Quarry; Otto Jean Construction Company), Lafayette Co., Wisconsin, USA
  • Otto Meyer Jr (Meyer Mine), Fillmore Co., Minnesota, USA
  • Otto Mine, Crawford Mts, Rich Co., Utah, USA
  • Otto Mine, Gillham, Sevier Co., Arkansas, USA
  • Otto Mine, Schottenhöfe, Harmersbach valley, Zell am Harmersbach, Black Forest, Baden-Württemberg, Germany
  • Ottomo, Tohoku, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Otto Mountain, Baker, San Bernardino Co., California, USA
  • Ottone vein, La Léchère (Notre Dame de Briançon), Tarentaise valley, Savoie, Rhône-Alpes, France
  • Otto Prospect (Little Coweetah Prospect; Sheenah Prospect), Macon Co., North Carolina, USA
  • Otto Rock Pit (David Otto), Washington Co., Oregon, USA
  • Ottorzhenets kimberlite body, Alakit-Markha, Daldyn-Alakit kimberlite field, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • Ottoshoop, Northwest Province, South Africa
  • Otto Strand Claims (Goodyears Bar), Sierra Co., California, USA
  • Ottowa Mine, Lake City District (Lake District), Hinsdale Co., Colorado, USA
  • Ottrelite Schist occurrence, Yreka, Siskiyou Co., California, USA
  • Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
  • Otts Mine, Floyd Co., Georgia, USA
  • Ott, Trinity Co., California, USA
  • Ottumwa Lode Occurrence, Unorganized District, Pennington Co., South Dakota, USA
  • Otuk Creek Occurrence, Colville District, North Slope Borough, Alaska, USA
  • O. Tuttle Property, Wet Mountains Area, Fremont Co., Colorado, USA
  • Otuzco Province, La Libertad Department, Peru
  • Otvovice, Kladno, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
  • Otway Ni deposit, Nullagine, East Pilbara Shire, Pilbara Region, Western Australia, Australia
  • Otway Ranges, Victoria, Australia
  • Otzberg, Odenwald, Hesse, Germany
  • Ötz valley, North Tyrol, Tyrol, Austria
  • Ouachita Mts Manganese District, Montgomery Co., Arkansas, USA
  • Ouachita Mts Manganese District, Pike Co., Arkansas, USA
  • Ouachita Mts Manganese District, Polk Co., Arkansas, USA
  • Ouaddaï Region, Chad
  • Ouaka Prefecture, Central African Republic
  • Ouanary Commune, French Guiana
  • Oua-n-Rechla, Ahaggar Mts (Hoggar Mts), Tamanghasset Province, Algeria
  • Ouargla Province, Algeria
  • Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
  • Ouassat prospect, Ouassat, Assaba Region, Mauritania
  • Oubalage Cu-Au deposit, Horqin Right Front Banner (Ke'erqin Youyi Qianqi), Hinggan League (Xing'an Prefecture), Inner Mongolia Autonomous Region, China
  • Ouche, Massiac, Cantal, Auvergne, France
  • Ouchi mine, Tohgoh-cho, Miyazaki Prefecture, Kyushu Region, Japan
  • Ouchong Au deposit, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
  • Oudalan Province, Sahel Region, Burkina Faso
  • Oudida, Morocco
  • Oudômxai Province, Laos
  • Oudtshoorn, Eden District, Western Cape Province, South Africa
  • Oued Allelah, Algeria
  • Oued Berkou, El Milia, Constantine Province, Algeria
  • Oued Ed-Dahab-Lagouira Region, Morocco
  • Oued Ed-Dahab Province, Oued Ed-Dahab-Lagouira Region, Morocco
  • Oued Kohol Mine, Oued Kohol, Tunisia
  • Oued Maden Mine, Oued Maden (Oued el Madene), Nefza mining district, Tunisia
  • Oued Moziz Mine, Oran Province, Algeria
  • Oued M'tak, Haouaria, Zaghouan Governorate, Tunisia
  • Ouégoa Commune, Northern Province, New Caledonia
  • Ouémé Department, Benin
  • Oue mine (Oye mine; Ohe mine; Ooe mine; Oe mine), Shakotan Peninsula, Shiribeshi Province, Hokkaido, Japan
  • Ouen Island ophiolite, Ouen Island, Southern Province, New Caledonia
  • Ouen Island, Southern Province, New Caledonia
  • Ouenza Mine (Djebel Ouenza), Ouenza, Tébessa Province, Algeria
  • Ouenza, Tébessa Province, Algeria
  • Ouessant Island, Finistère, Brittany, France
  • Ouest Department, Haiti
  • Oughterard, Connemara, Co. Galway, Ireland
  • Oughterside open cast coal site, Aspatria, Cumbria, England, UK
  • Ougiyama, Otsuki City, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan
  • Ouham-Pendé Prefecture, Central African Republic
  • Ouham Prefecture, Central African Republic
  • Ou'hori mine (Obori mine; Ohorimangan mine), Hikone, Shiga prefecture, Kinki region, Honshu Island, Japan
  • Ou'idani mine (Oidani mine), Tottori Prefecture, Chugoku Region, Honshu Island, Japan
  • Ou'izumi mine (Oizumi mine), Yamagata Prefecture, Tohoku Region, Honshu Island, Japan
  • Oujda-Angad Province, Oriental Region, Morocco
  • Oujia Au deposit, Dongxiang Co., Fuzhou Prefecture, Jiangxi Province, China
  • Oukilal, Tichka massif, High Atlas Mts, Atlas Mts, Morocco
  • Oukura mine (Ohkura mine), Hannou, Saitama Prefecture, Kanto Region, Honshu Island, Japan
  • Oulanka plutonic complex, Northern Karelia, Karelia Republic, Northern Region, Russia
  • Oulay Mine (Ulay Mine; Ute-Ulay Mine), Lake City, Lake City District (Lake District), Hinsdale Co., Colorado, USA
  • Ouled Moussa, Tunisia
  • Oule ravine, Péone, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
  • Oulx, Susa Valley, Torino Province, Piedmont, Italy
  • Oum Arwagen Mine, Tiris Zemmour Region, Mauritania
  • Oume caves, Oume City (Ohme City), Tokyo Prefecture, Kanto Region, Honshu Island, Japan
  • Oume City (Ohme City), Tokyo Prefecture, Kanto Region, Honshu Island, Japan
  • Oumé department, Fromager region, Ivory Coast (Côte d'Ivoire)
  • Oum el Bouaghi Province, Algeria
  • Oum el-Kecheb Mine, Tunisia
  • Oumiya mine (Ohmiya mine; Omiya mine), Hidaka, Saitama Prefecture, Kanto Region, Honshu Island, Japan
  • Oumjrane Mine, Alnif, Tarhbalt, Er Rachidia Province, Meknès-Tafilalet Region, Morocco
  • Oumlil Mine (incl. Oumlil East Mine), Oumlil, Bou Azer District (Bou Azzer District), Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
  • Ounasvaara, Rovaniemi, Lapland Region, Finland
  • Ounce a Day Placer Mine, Black Bear, Klamath Mts, Siskiyou Co., California, USA
  • Oup pegmatite, Kenhardt District, Namaqualand, Northern Cape Province, South Africa
  • Ouraga, Oursi, Oudalan Province, Sahel Region, Burkina Faso
  • Ourais mine, Raiva, Castelo de Paiva, Aveiro District, Portugal
  • Ouray Co., Colorado, USA
  • Ouray District (Uncompahgre District), Ouray Co., Colorado, USA
  • Ouray Occurrence, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA
  • Ouray, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA
  • Ouray Park Gravel Pit, Uintah Co., Utah, USA
  • Ouray, Sneffels District (Mount Sneffels District), Ouray Co., Colorado, USA
  • Ouray, Uteland Knoll District (Ouray District), Uintah Co., Utah, USA
  • Our Chance Mine (Clark Mines; Albert Austin Group), Whitlock District, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA
  • Our Creek Mine, Fairbanks District, Fairbanks North Star Borough, Alaska, USA
  • Our Creek Occurrence, Chandalar District, Yukon-Koyukuk Borough, Alaska, USA
  • Our Creek Occurrence, McGrath District, Yukon-Koyukuk Borough, Alaska, USA
  • Ourd Mekta Mine, Touissit, Touissit District, Oujda-Angad Province, Oriental Region, Morocco
  • Our Flag et al Mine, Calaveras Co., California, USA
  • Our Flag, Tuolumne Co., California, USA
  • Ourika Valley, High Atlas Mts, Atlas Mts, Morocco
  • Ournes, Capdenac, Lot, Midi-Pyrénées, France
  • Ouro Fino, Coronel Murta, Jequitinhonha valley, Minas Gerais, Brazil
  • Ouro Fino pegmatite, Ouro Fino, Coronel Murta, Jequitinhonha valley, Minas Gerais, Brazil
  • Ouro Mil claim, Creporizão, Itaituba, Tapajós Gold Province, Pará, Brazil
  • Our Only Chance, Judith Basin Co., Montana, USA
  • Ouro Preto, Minas Gerais, Brazil
  • Ouro Roxo mine, Pacu gold camp, Jacareacanga, Tapajós Gold Province, Pará, Brazil
  • Oursi, Oudalan Province, Sahel Region, Burkina Faso
  • Oursler Quarry, Carroll Co., Maryland, USA
  • Oursler Talc Quarries, Carroll Co., Maryland, USA
  • Our Town, Tallapoosa Co., Alabama, USA
  • Oury prospect, Big Bug District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
  • Oushima Island (Ohshima; Oshima), Izu Archipelago, Tokyo Prefecture, Japan
  • Ousley claim, Lone Pine Saddle, Four Peaks District, Mazatzal Mts, Gila Co., Arizona, USA
  • Oustomah Mine (Pennsylvania & Eddy), Nevada City District (Grass Valley District), Nevada Co., California, USA
  • Outagamie Co., Wisconsin, USA
  • Outalpa Mine (Carson's Claim; Golden Dewdrop Mine), Outalpa Station, Olary Province, South Australia, Australia
  • Outalpa siding, Olary, Olary Province, South Australia, Australia
  • Outalpa Station, Olary Province, South Australia, Australia
  • Outaouais, Québec, Canada
  • Outback prospect, Greenwood, Oxford Co., Maine, USA
  • Outcrop (MRDS - 10136077), Chilton Co., Alabama, USA
  • Outcrop (MRDS - 10185121), Mountain Creek, Chilton Co., Alabama, USA
  • Outcrop No. 1305, Daychopan District, Zabol Province (Zabul Province), Afghanistan
  • Outcrop No. 543, Mizan District, Zabol Province (Zabul Province), Afghanistan
  • Outcrop No. 7273, Miyan Nasheen District (Miya Nishin District), Kandahar Province (Qandahar Province), Afghanistan
  • Outcrop No. 914, Daychopan District, Zabol Province (Zabul Province), Afghanistan
  • Outcrop Sample For Uranium; LC-15 Occurrence, DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (1), Monroe Co., Kentucky, USA
  • Outcrop Sample For Uranium Occurrence (2), Monroe Co., Kentucky, USA
  • Outcrop Sample For Uranium Occurrence (3), Monroe Co., Kentucky, USA
  • Outcrop Sample For Uranium Occurrence, Allen Co., Kentucky, USA
  • Outcrop Sample For Uranium Occurrence, Cumberland Co., Kentucky, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026189), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026190), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026191), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026192), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026193), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026194), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026195), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026196), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026197), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026198), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026199), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026200), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026201), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026202), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026203), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026204), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026205), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026206), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026207), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026208), Smith Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026209), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026210), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026211), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026212), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026213), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026214), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026215), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026216), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026217), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026218), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026219), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026220), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026221), Warren Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026222), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026223), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026224), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026225), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026226), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026227), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026229), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026230), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026231), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026232), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026233), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026234), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026235), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026236), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026237), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026239), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026240), Coffee Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026241), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026242), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026243), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026244), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026245), Coffee Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026246), Moore Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10026247), Moore Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088520), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088521), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088522), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088523), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088524), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088526), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088527), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088529), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088530), Coffee Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088531), Macon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088532), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088533), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088534), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088535), Coffee Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088536), Moore Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10088537), Lincoln Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091894), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091895), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091896), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091897), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091898), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091899), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091900), Smith Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091901), Overton Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091902), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091903), Putnam Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091904), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091905), Jackson Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091906), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091907), Clay Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091909), DeKalb Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091910), Cannon Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091912), Coffee Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091913), Sumner Co., Tennessee, USA
  • Outcrop Sample For Uranium Occurrence (MRDS - 10091914), Coffee Co., Tennessee, USA
  • Outeiro dos Algares Mine, Portel, Évora District, Portugal
  • Outeloup, Nièvre, Burgundy, France
  • Outer Hebrides, Scotland, UK
  • Outer Space
  • Outhouse Consolidated, Placer Co., California, USA
  • Outjo, Damaraland District, Kunene Region, Namibia
  • Outjo District, Kunene Region, Namibia
  • Outlaw Economy, Uravan District, Mesa Co., Colorado, USA
  • Outlaw Group Mine, Uravan District, Mesa Co., Colorado, USA
  • Outlaw Mesa Claims, Gateway District, Mesa Co., Colorado, USA
  • Outlaw Mine, Clarks Pass area, Black Hills, Monte Negro District (Eagle Mountain District), Riverside Co., California, USA
  • Outlaw Mine, Columbus Peak, Yuma Co., Arizona, USA
  • Outlaw Mine, Round Mountain District, Nye Co., Nevada, USA
  • Outlaw No. 23, Uravan District, Mesa Co., Colorado, USA
  • Outlaw Vanadium Group, Uravan District, Mesa Co., Colorado, USA
  • Outlet Neck, McKinley Co., New Mexico, USA
  • Outlet Tunnel, Creede District, Mineral Co., Colorado, USA
  • Outlet, Uravan District, Montrose Co., Colorado, USA
  • Outlook Canyon (Neuerberg locality 31), Santa Monica Mts, Los Angeles Co., California, USA
  • Outlook Mine, Big Eye Mine group, Slumgullion Pass, Kofa Game Range, Castle Dome District, Castle Dome Mts, Yuma Co., Arizona, USA
  • Outlook Mine, Bouquet Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles Co., California, USA
  • Outlook Mine, Hartford District (Huachuca Mountains District), Huachuca Mts, Cochise Co., Arizona, USA
  • Outlook prospect(?), Tybo District, Nye Co., Nevada, USA
  • Out of Sight Prospect, White Mountains Rare II Area, White Mts, Mono Co., California, USA
  • Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region, Finland
  • Outokumpu Cu-Zn deposit, Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, Eastern Finland Region, Finland
  • Outomongu Mine, Marienfluss, Kunene Region, Namibia
  • Out Post, Boise Co., Idaho, USA
  • Outpost claims, Monumental District, Whipple Mts, San Bernardino Co., California, USA
  • Outpost Extension prospect, San Domingo Wash, White Picacho District, Yavapai Co., Arizona, USA
  • Outpost Island mine, Great Slave Lake, Northwest Territories, Canada
  • Outpost Mine (Outpost Pegmatite Mine), San Domingo Wash, White Picacho District, Yavapai Co., Arizona, USA
  • Outpost No. 1 claim, Seeley group, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Outpost No. 2 claim, Seeley group, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA
  • Outwash Creek Southeast Occurrence, Colville District, North Slope Borough, Alaska, USA
  • Outwash Creek South-Southwest Occurrence, Colville District, North Slope Borough, Alaska, USA
  • Outwash Creek Southwest Occurrence, Colville District, North Slope Borough, Alaska, USA
  • Outwash Creek West Occurrence, Colville District, North Slope Borough, Alaska, USA
  • Out West, Emery Co., Utah, USA
  • Out West Placer; Galena Park; Cleveland; Ajax; Hercules, Elk Mountain District, Gunnison Co., Colorado, USA
  • Outwest (Red Arrow Group), La Plata District (California District), Montezuma Co., Colorado, USA
  • Ouvidor, Catalão I Carbonatite Complex, Goiás, Brazil
  • Ovaçik Au-Ag deposit (Ovaçik mine), Bergama, Izmir Province, Aegean Region, Turkey
  • Ovala prospect, Gabon
  • Ovalle, Limarí Province, Coquimbo Region, Chile
  • Oval Peak Batholith, Chelan Co., Washington, USA
  • Oval Pit Mine (Foxtrap Mine), Foxtrap, Conception Bay South, Avalon peninsula, Conception Bay, Newfoundland, Newfoundland and Labrador, Canada
  • Ovee - Silurian Mine, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA
  • Ovejera Mine, La Luz, Mun. de Guanajuato, Guanajuato, Mexico
  • Ovens No. 1; No. 2, Horseshoe Basin District, Park Co., Colorado, USA
  • Overacre Mine, Peaksville, Bedford Co., Virginia, USA
  • Overall Mine, Warren Co., Virginia, USA
  • Overath, Bergisches Land, North Rhine-Westphalia, Germany
  • Overberg District, Western Cape Province, South Africa
  • Overberget Mining Field, Kongsberg Silver Mining District, Kongsberg, Buskerud, Norway
  • Overbey Prospect, Lewis Co., Tennessee, USA
  • Overby shaft, Trigg Co., Kentucky, USA
  • Overcross Pit, Soldiers Pass Area, Utah Co., Utah, USA
  • Over Easy Bar Placer, Idaho Primitive Area, Big Creek District, Valley Co., Idaho, USA
  • Overend Quarry, Whitehaven, North and Western Region (Cumberland), Cumbria, England, UK
  • Overfield Mine, Johnnie District, Nye Co., Nevada, USA
  • Over Haddon, Derbyshire, England, UK
  • Overhang open Cut, Cloncurry, Cloncurry District, Mount Isa - Cloncurry area, Queensland, Australia
  • Overholt Lode, Creede District, Mineral Co., Colorado, USA
  • Overholt Rock Pile, Upper Applegate District, Jackson Co., Oregon, USA
  • Overholtz, Inyo Co., California, USA
  • Overijssel, Netherlands
  • Overland Canyon, Tooele Co., Utah, USA
  • Overland Claims, New River District, Trinity Co., California, USA
  • Overland Claim, Willard District, Wasatch Mts, Box Elder Co., Utah, USA
  • Overland Mine, Chalk Creek District, Chaffee Co., Colorado, USA
  • Overland Mine, Chilito, Hayden area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
  • Overland Mine, Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
  • Overland Mine, Mineral Hill District, Blaine Co., Idaho, USA
  • Overland Prospect, Galena District, Blaine Co., Idaho, USA
  • Overland Prospect, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
  • Overlap Claim, Emigrant Creek District (Chico District), Park Co., Montana, USA
  • Överlida, Svenljunga, Västergötland, Sweden
  • Overlook and Snark Placer Mine, El Dorado Co., California, USA
  • Overlook claim, Cochise District, Little Dragoon Mts, Cochise Co., Arizona, USA
  • Overlook claim, Highland Springs (Highland), Lake Co., California, USA
  • Overlook Claim, Yogo, Judith Basin Co., Montana, USA
  • Overlook deposit, Jacumba, Jacumba District, San Diego Co., California, USA
  • Overlooked Mine, Madera Co., California, USA
  • Overlook Mine, Black Warrior District, Elmore Co., Idaho, USA
  • Overlook Mine, Cooke Mountain, Belcher District, Ferry Co., Washington, USA
  • Overlook Mine, Eureka District, Lemhi Co., Idaho, USA
  • Overlook Mine, Pioneerville District, Boise Co., Idaho, USA
  • Overlook Mine, San Bernardino Co., California, USA
  • Overlook Occurrence (Denny Prospect; Iron Cliff), Highland District (Siberia District), Silver Bow Co., Montana, USA
  • Overlook Prospect, Blaine Co., Idaho, USA
  • Overlook prospect, Jacumba, Jacumba District, San Diego Co., California, USA
  • Overlook Prospect, Lick Creek RARE II Area, Wallowa Range District, Wallowa Co., Oregon, USA
  • Overlook Quarry (Atlas Feldspar Company Quarry; Atlas Quarry; Day Quarry), Overlook, Saratoga Co., New York, USA
  • Overman Lode Occurrence, Nugget District (Myrtle Creek District), Douglas Co., Oregon, USA
  • Overman mine, Comstock District, Storey Co., Nevada, USA
  • Overman Placer, Nugget District (Myrtle Creek District), Douglas Co., Oregon, USA
  • Overman property, Castaic Junction, Los Angeles Co., California, USA
  • Overntjern Quarry, Modum, Buskerud, Norway
  • Overseer, Sugarloaf District, Boulder Co., Colorado, USA
  • Overshot claim, Harquahala District, Harquahala Mts, La Paz Co., Arizona, USA
  • Overshot Group Mine, Malheur District (Mormon Basin District), Malheur Co., Oregon, USA
  • Overshot Group, Rye Valley District (Mormon Basin District), Baker Co., Oregon, USA
  • Over Sight, Benton Range Rare II Area, Mono Co., California, USA
  • Oversight Creek Mine, Kougarok District, Nome Borough, Alaska, USA
  • Oversight group (Big Skookum claim), Pinal Peak area, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA
  • Oversight group of claims (Great West group; Fraction; Midnight group), Goldfield area, Goldfield District, Pinal Co., Arizona, USA
  • Oversight Mine, Artillery Mts, Mohave Co., Arizona, USA
  • Oversight Mine, Cooke Mountain, Belcher District, Ferry Co., Washington, USA
  • Oversight Mine, Dell Mine, Spor Mountain, Juab Co., Utah, USA
  • Oversight Mine, Mineral Hill, Nespelem District (Moses District), Colville Indian Reservation, Okanogan Co., Washington, USA
  • Oversight placer, Battle Mountain District, Lander Co., Nevada, USA
  • Oversight Placer Mine, Deadwood, Deadwood District, Klamath Mts, Siskiyou Co., California, USA
  • Oversight Placer Mine, Fresno Co., California, USA
  • Oversight Placer Mine, Yuba Co., California, USA
  • Oversight, Tuolumne Co., California, USA
  • Oversite Mine, Calaveras Co., California, USA
  • Overstreet Prospect, Bedford Co., Virginia, USA
  • Overstreet vein, Jessamine Co., Kentucky, USA
  • Overton Co., Tennessee, USA
  • Overton County Highway Deptartment Quarry, Overton Co., Tennessee, USA
  • Overton deposit, Moapa District, Clark Co., Nevada, USA
  • Overton Hall mine, Ashover, Derbyshire, England, UK
  • Overton Mine, Snowden, Liberty District, Klamath Mts, Siskiyou Co., California, USA
  • Overton - Steele Hollow Iron Deposits, Pueblo Area, Pueblo Co., Colorado, USA
  • Overwich - Hughes Creek District, Ravalli Co., Montana, USA
  • Overysel deposit, Mokopane (Potgietersrus), Eastern Bushveld Complex, Limpopo Province, South Africa
  • Ovida, Lamartine District, Clear Creek Co., Colorado, USA
  • Ovi della Sella, Prevat Valley, Central St Gotthard Massif, Leventina, Ticino (Tessin), Switzerland
  • Ovi di Scimfuss, Pontino Alp, Tremola Valley, Central St Gotthard Massif, Leventina, Ticino (Tessin), Switzerland
  • Oviedo, Asturias, Spain
  • Övlandehult quarry, Ökna, Vetlanda, Småland, Sweden
  • Övörhangay Aimag (Övörkhangai Aimag), Mongolia
  • Øvrebøvatn, Øvrebø, Vennesla, Vest-Agder, Norway
  • Øvrebø, Vennesla, Vest-Agder, Norway
  • Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
  • Øvre Eiker, Buskerud, Norway
  • Øvre Eivollen, Eivollen, Drag, Tysfjord, Nordland, Norway
  • Øvre Langerudsgruve deposit, Snarum, Modum, Buskerud, Norway
  • Øvre Lankavarre, Vaddas-Rieppe area, Oksfjorddalen, Nordreisa, Troms, Norway
  • Øvre Lapplegret Quarry, Lapplegret, Drag, Tysfjord, Nordland, Norway
  • Øvre Rødal (Rodal), Tafjord, Norddal, Møre og Romsdal, Norway
  • Øvre Vang Mine, Kvikne Mines, Kvikne, Tynset, Hedmark, Norway
  • Øvre Vats, Vats, Vindafjord, Rogaland, Norway
  • Øvstebø, Kleppan, Sauland, Hjartdal, Telemark, Norway
  • Owakudani, Kanagawa Prefecture, Kanto Region, Honshu Island, Japan
  • Owaku mine, Gifu Prefecture, Chubu Region, Honshu Island, Japan
  • Owala-Kaikawala area (incl. Gurubabila; Koswana), Matale District, Central Province, Sri Lanka
  • Owani mine, Minami-Tsugaru-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
  • Owanka, Pennington Co., South Dakota, USA
  • Owasco Creek locality, Auburn, Cayuga Co., New York, USA
  • Owatonna Occurrence, Idaho Springs District, Clear Creek Co., Colorado, USA
  • O. W. Barker Prospect, Caswell Co., North Carolina, USA
  • O. W. Bowles Placer, El Dorado Co., California, USA
  • Owen and Hickley Mine, Hooperville area, Klamath Mts, Siskiyou Co., California, USA
  • Owen Borate Mine (North Side of Lead Mountain), Lead Mountain, Barstow, San Bernardino Co., California, USA
  • Owenby Group, Uravan District, San Miguel Co., Colorado, USA
  • Owenby Property, Fannin Co., Georgia, USA
  • Owen Circle placer, Antelope District, Pershing Co., Nevada, USA
  • Owen Co., Indiana, USA
  • Owen Co., Kentucky, USA
  • Owen Creek Area Occurrence (MRDS - 10184276), Albany Co., Wyoming, USA
  • Owen Creek Area Occurrence (MRDS - 10254647), Albany Co., Wyoming, USA
  • Owen group (Hillbilly No. 10; Owen No. 3; Mitchell; Sunset claims; Sunset claim), Fellows area, San Luis Obispo Co., California, USA
  • Owen group, Temblor Range, Kern Co., California, USA
  • Owen Hiner Tract Prospect, Pendleton Co., West Virginia, USA
  • Owen iron deposit, Cambridge Hills, Wilson District, Lyon Co., Nevada, USA
  • Owen Lake, Omenica Mining Division, British Columbia, Canada
  • Owen-McGovern Prospect, Ruby Range, Madison Co., Montana, USA
  • Owen Mine (Black Boy), Takilma District, Josephine Co., Oregon, USA
  • Owen Nason's quarry, Dorchester, Boston, Suffolk Co., Massachusetts, USA
  • Owen prospect, Central District, Grant Co., New Mexico, USA
  • Owen Quarry, Montpelier District, Bear Lake Co., Idaho, USA
  • Owens (Black Nugget), Takilma District, Josephine Co., Oregon, USA
  • Owensboro Brick Plant (Lewisport Mine), Hancock Co., Kentucky, USA
  • Owensby Mining Claim (Bradley Mining Claim; Brothers Mining Claim; Mineral Messer Mining Claim), Calaveras Co., California, USA
  • Owens Claim, Riverside Co., California, USA
  • Owens County Highway Department, Owen Co., Indiana, USA
  • Owens District, Mohave Co., Arizona, USA
  • Owens Draw Occurrence, Weston Co., Wyoming, USA
  • Owen Shaft Prospect, Monroe Co., West Virginia, USA
  • Owen shaft, Trigg Co., Kentucky, USA
  • Owen-Sheppard Mine, Wilkinson Co., Georgia, USA
  • Owens Illinois Inc., Amador Co., California, USA
  • Owens Lake Clay Mine (Caltrans Clay), Inyo Co., California, USA
  • Owens Lake Mine, Inyo Co., California, USA
  • Owens Lake, Olancha, Owens Valley, Inyo Co., California, USA
  • Owens Lake Pit (Lake Minerals-Owens Lake Mine), Inyo Co., California, USA
  • Owens M. B. Pit, Marion Co., Florida, USA
  • Owens Mine, Apache No. 2 District, Hidalgo Co., New Mexico, USA
  • Owens Mine, Buford, Gwinnett Co., Georgia, USA
  • Owen's Mine, Calico, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA
  • Owens Mine, Gold Basin District, White Hills, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
  • Owens Mine, Mohave Co., Arizona, USA
  • Owens Mine (Old Owens; Janet Mine), Julian, Julian District, San Diego Co., California, USA
  • Owen Sound Quarry, Grey Co., Ontario, Canada
  • Owens Peak, Kern Co., California, USA
  • Owens pit (Knoll No. 1 cinder pit), Navajo Co., Arizona, USA
  • Owens Placer Mine, Sierra Co., California, USA
  • Owens Prospect, Goochland, Goochland Co., Virginia, USA
  • Owens Prospect, Halifax Co., Virginia, USA
  • Owens River, Inyo Co., California, USA
  • Owens Valley, Inyo Co., California, USA
  • Owens Valley meteorite, Owens Valley, Inyo Co., California, USA
  • Owen Vean Mine, Tregurtha Downs Mine, St Hilary, Mount's Bay District, Cornwall, England, UK
  • Owenyo, Inyo Co., California, USA
  • Owhat Prospect (Cobalt Creek), Aniak District, Bethel Borough, Alaska, USA
  • Owiecznik Hill, Sobięcin, Boguszów-Gorce, Wałbrzych District, Lower Silesia (Dolnośląskie), Poland
  • Owings Mills, Baltimore Co., Maryland, USA
  • Owingsville, Bath Co., Kentucky, USA
  • Owlacombe & Stormsdown Mine (West Beam Mine; Ashburton United Mines), Ashburton, Ilsington & Ashburton Area, Dartmoor & Teign Valley District, Devon, England, UK
  • Owl Canyon, Larimer Co., Colorado, USA
  • Owl Canyon Mine, San Bernardino Co., California, USA
  • Owl claim, Amole District, Tucson Mts, Pima Co., Arizona, USA
  • Owl claims, Owl Head Buttes area, Owl Head District, Pinal Co., Arizona, USA
  • Owl Copper Mine (John Diaz), Mariposa Co., California, USA
  • Owl Creek, Copper Falls, Keweenaw Co., Michigan, USA
  • Owl Creek deposit, Timmins Area, Cochrane District, Ontario, Canada
  • Owl Creek District, Hot Springs Co., Wyoming, USA
  • Owl Creek Fissure Mine, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA
  • Owl Creek Mine, Placer Co., California, USA
  • Owlet Hole, Matlock, Derbyshire, England, UK
  • Owl Group (Virginia; Red Bird), Greenhorn District, Grant Co., Oregon, USA
  • Owl Gulch, Hinsdale Co., Colorado, USA
  • Owl Head District, Tortolita Mts, Pinal Co., Arizona, USA
  • Owl Head Mine (Owl Head claims), Brady Wash area, Durham Hills, Durham-Suizo District, Pinal Co., Arizona, USA
  • Owl Hole deposit (Owl Hole Gypsum prospect group; Owl Hole Spring deposit), Owl Hole Springs, Owlshead Mts, San Bernardino Co., California, USA
  • Owl Hole Gap Occurrence, Grainger Co., Tennessee, USA
  • Owl Holes area, Owl Hole Springs, Owlshead Mts, Death Valley, Death Valley National Park, San Bernardino Co., California, USA
  • Owl Hole Springs, Owlshead Mts, San Bernardino Co., California, USA
  • Owl Hollow Placer, Devils Backbone District, Tallapoosa Co., Alabama, USA
  • Owl Hollow Prospect, Monroe Co., Georgia, USA
  • Owl Hollow Prospect (Owl Pocket; Veteran), Applegate District, Jackson Co., Oregon, USA
  • Owl mine, Caballo Mountain District, Sierra Co., New Mexico, USA
  • Owl Mine, Calaveras Co., California, USA
  • Owl Mine, Virginia District, Lordsburg District, Pyramid Mts, Hidalgo Co., New Mexico, USA
  • Owl Mine (Wood-Owl Mine), Greenhorn Summit W area, Wofford Heights, Greenhorn Mountains District (Greenhorn District), Kern Co., California, USA
  • Owl Mts (Owl Hole Mts), Owlshead Mts, Death Valley, Death Valley National Park, San Bernardino Co., California, USA
  • Owl No. 1 and 2 Mine, Madera Co., California, USA
  • Owl No. 1 Prospect (Bright Outlook Mine), San Bernardino Co., California, USA
  • Owl Placer Mine, Mariposa Co., California, USA
  • Owl placer, Orleans (Orleans Bar; New Orleans Bar), Weitchpec District, Klamath Mts, Humboldt Co., California, USA
  • Owl Property, Butte Co., California, USA
  • Owl Prospect, Old River Arrastre, Mazourka Rare II Area, Inyo Co., California, USA
  • Owl Rock, Kayenta area, Navajo Co., Arizona, USA
  • Owls Head Celestite Prospect (Owlshead), San Bernardino Co., California, USA
  • Owls Head, Grenada, Siskiyou Co., California, USA
  • Owl's Head Mountain, Benton, Grafton Co., New Hampshire, USA
  • Owls Head Mt, Franklin Co., New York, USA
  • Owlshead Mts, Death Valley, Death Valley National Park, San Bernardino Co., California, USA
  • Owlshead prospects, Death Valley-Kingston Range District, Panamint Mts (Panamint Range), Death Valley National Park, Inyo Co., California, USA
  • Owls Head prospects (Nevel prospects), Buckfield, Oxford Co., Maine, USA
  • Owl's Head Quarry, Buckfield, Oxford Co., Maine, USA
  • Owls Nest Mine, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, San Xavier (Tohono O'odom) Indian Reservation, Pima Co., Arizona, USA
  • Owl's Nest Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
  • Owl's Nest - Woodley Clay Pit, Polk Co., Florida, USA
  • Owls Spring prospect, Owl Hole Springs, Owlshead Mts, Death Valley, Death Valley National Park, San Bernardino Co., California, USA
  • Owl Vein Occurrence, Bohemia District (Champion District), Lane Co., Oregon, USA
  • Own Crews (MRDS - 10132337), Milwaukee Co., Wisconsin, USA
  • Own Crews (MRDS - 10156400), Buffalo Co., Wisconsin, USA
  • Own Crews (MRDS - 10156780), Milwaukee Co., Wisconsin, USA
  • Own Crews (MRDS - 10156813), Milwaukee Co., Wisconsin, USA
  • Own Crews (MRDS - 10156953), Marathon Co., Wisconsin, USA
  • Own Crews (MRDS - 10157311), Trempealeau Co., Wisconsin, USA
  • Own Crews (MRDS - 10159442), Waukesha Co., Wisconsin, USA
  • Own Crews (MRDS - 10180634), Milwaukee Co., Wisconsin, USA
  • Own Crews (MRDS - 10181976), Waukesha Co., Wisconsin, USA
  • Own Crews (MRDS - 10205198), Milwaukee Co., Wisconsin, USA
  • Own Crews (MRDS - 10205354), Winnebago Co., Wisconsin, USA
  • Own Crews (MRDS - 10205458), Walworth Co., Wisconsin, USA
  • Own Crews (MRDS - 10205646), Crawford Co., Wisconsin, USA
  • Own Crews (MRDS - 10205720), Marinette Co., Wisconsin, USA
  • Own Crews (MRDS - 10229487), Outagamie Co., Wisconsin, USA
  • Own Crews (MRDS - 10254208), Richland Co., Wisconsin, USA
  • Own Crews (MRDS - 10277821), Buffalo Co., Wisconsin, USA
  • Own Crews (MRDS - 10277898), Dunn Co., Wisconsin, USA
  • Own Crews (MRDS - 10278010), Marquette Co., Wisconsin, USA
  • Own Crews (MRDS - 10278042), Green Co., Wisconsin, USA
  • Own Crews (MRDS - 10278175), Jefferson Co., Wisconsin, USA
  • Own Crews (MRDS - 10302150), Brown Co., Wisconsin, USA
  • Own Crews (MRDS - 10302162), Fond Du Lac Co., Wisconsin, USA
  • Own Crews (MRDS - 10302431), Vernon Co., Wisconsin, USA
  • Own Crews (MRDS - 10302802), Marathon Co., Wisconsin, USA
  • O & W Placer Mine, Happy Camp, Klamath Mts, Siskiyou Co., California, USA
  • Owsley Quarry (Salem West Quarry; Edward Kraemer & Sons Quarry), Salem, Washington Co., Indiana, USA
  • Owyhee Black Rock, Malheur Co., Oregon, USA
  • Owyhee Co., Idaho, USA
  • Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA
  • Owyhee Land No. 1, Malheur Co., Oregon, USA
  • Owyhee Mercury Property, Owyhee Co., Idaho, USA
  • Owyhee Mine, Malheur Co., Oregon, USA
  • Owyhee prospect, Mountain City District, Elko Co., Nevada, USA
  • Owyhee Reservior Bentonite Occurrence, Malheur Co., Oregon, USA
  • Owyhee Rims No. 1, Malheur Co., Oregon, USA
  • Owyhee Rims No. 2, Malheur Co., Oregon, USA
  • Owyhee River Occurrence, Owyhee Co., Idaho, USA
  • Owyhee River placers, Mountain City District, Elko Co., Nevada, USA
  • Owyhee Silver Mining, Owyhee Co., Idaho, USA
  • Owyhee Sodium Nitrate Prospect, Malheur Co., Oregon, USA
  • Owyhee Sunset, Malheur Co., Oregon, USA
  • Owyhee West, Lake Co., Oregon, USA
  • Ow Yuen Claims (Akers; Oregon Caves), Sucker Creek District, Josephine Co., Oregon, USA
  • Oxapampa Province, Pasco Department, Peru
  • Oxbow Creek, Maricopa Co., Arizona, USA
  • Oxbow Dam, Baker Co., Oregon, USA
  • Oxbow Estates, Payson District (Green Valley District), Gila Co., Arizona, USA
  • Oxbow Group (Oxbow Nos. 1-6; Oxbow Fraction), Riverside Co., California, USA
  • Oxbow Hill, Oxbow Estates area, Payson District (Green Valley District), Gila Co., Arizona, USA
  • Oxbow, Jefferson Co., New York, USA
  • Oxbow Mine, Chiricahua Mts, Cochise Co., Arizona, USA
  • Oxbow Mine (Oxbow claim; Golden Wreath claim; Golden Wreath Mine; Osborn prospect), Oxbow Gulch, Moore Mountain area, Oxbow Estates area, Payson District (Green Valley District), Gila Co., Arizona, USA
  • Oxbow mine, Red River Parish, Louisiana, USA
  • Oxbow, St. Lawrence Co., New York, USA
  • Oxbow, Theresa Township, Jefferson Co., New York, USA
  • Oxclose mine, Snitterton, Derbyshire, England, UK
  • Oxec Mine, Alta Verapaz Department, Guatemala
  • Oxen Mine, North Tintic District (Caledonia District; Oasis District), East Tintic Mts, Utah Co., Utah, USA
  • Oxford Co., Maine, USA
  • Oxford Co., Ontario, Canada
  • Oxford Cut (Oxford-West Morrison Cut), Hastie's Quarry, Spar Mountain, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
  • Oxford, East Nottingham Township, Chester Co., Pennsylvania, USA
  • Oxford Furnace, Oxford, Oxford Township, Warren Co., New Jersey, USA
  • Oxford Furnace, Oxford Township, Warren Co., New Jersey, USA
  • Oxford Furnace, Oxford, Warren Co., New Jersey, USA
  • Oxford Granite quarry, Oxford, Oxford Co., Maine, USA
  • Oxford, Harlan Co., Nebraska, USA
  • Oxford Iron Mine (Ross), James River-Roanoke River Mn-Fe-Ba District, Campbell Co., Virginia, USA
  • Oxford, Llano Co., Texas, USA
  • Oxford Mine, Little Cottonwood District (Alta District), Wasatch Mts, Salt Lake Co., Utah, USA
  • Oxford Mine, Nevada Co., California, USA
  • Oxford Mine (Oxford Mine and mill; Oxford lease and mill), Downieville, Sierra Co., California, USA
  • Oxford mine, Weippe District (Musselshell District), Nez Perce Co., Idaho, USA
  • Oxford, New Haven Co., Connecticut, USA
  • Oxford, Oxford Co., Maine, USA
  • Oxford, Oxford Township, Warren Co., New Jersey, USA
  • Oxford Pits, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
  • Oxford Prospect (J 1 C Group; Silver Creek), Oxford District, Clearwater Co., Idaho, USA
  • Oxford Quarry, Calhoun Co., Alabama, USA
  • Oxford Quarry, Newton Co., Georgia, USA
  • Oxford Serpentine Quarry (Collins prospect), Oxford, Llano Co., Texas, USA
  • Oxfordshire, England, UK
  • Oxford Silver mine, Milton, Oxford Co., Maine, USA
  • Oxford Stone Co. Quarry (Tilcon New Jersey Quarry), White Township, Warren Co., New Jersey, USA
  • Oxford Township, Warren Co., New Jersey, USA
  • Oxford, Warren Co., New Jersey, USA
  • Oxford, Worcester Co., Massachusetts, USA
  • O. X. group, Julian, Julian District, San Diego Co., California, USA
  • Ox Group Prospect, Circle District, Yukon-Koyukuk Borough, Alaska, USA
  • Ox Group, Stateline District (Hamlin Valley), Iron Co., Utah, USA
  • Oxhide Mine (Lower Ox Hide Mine; Upper Ox Hide Mine; Schultze Mine; Schultze group), Miami, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA
  • Oxia Palus quadrangle, Mars
  • Oxide Claims, Creede District, Mineral Co., Colorado, USA
  • Oxide Creek Mine, Council District, Nome Borough, Alaska, USA
  • Oxide King claim, Picuris District, Taos Co., New Mexico, USA
  • Oxide Lode Prospect, Lava Creek District, Butte Co., Idaho, USA
  • Oxide Mine, Del Dios, San Diego Co., California, USA
  • Oxide Mine (Oxide open pit mine; Young America Mine; Young American Mine), Silver Bell Mine, Mineral Mountain, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA
  • Oxide Mine, Upper Blue River District, Park Co., Colorado, USA
  • Oxide No. 1, Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
  • Ox Lake Cu deposit, Ootsa Lake, Omenica Mining Division, British Columbia, Canada
  • Oxley Prospect, Moore Hill, Illinois - Kentucky Fluorspar District, Crittenden Co., Kentucky, USA
  • Oxley River, Mount Warning, Tweed Shire, Queensland, Australia
  • Öxling Mine (Öchsling Mine), Zirmsee area, Kleine Fleiß valley, Goldberg group, Hohe Tauern, Carinthia, Austria
  • Oxman Mine (Oxman and Owens Mine; Snowball), Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
  • Oxmoor, Birmingham District, Jefferson Co., Alabama, USA
  • Oxner Prospect, Jackson Co., North Carolina, USA
  • Oxon Hill, Prince Georges Co., Maryland, USA
  • Oxygon Cove slag locality, Oxygon area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
  • Ox Yoke Mine, Placer Co., California, USA
  • Oya-cho, Yabu-gun, Hyogo Prefecture, Kinki Region, Honshu Island, Japan
  • Oyahana, Chichibu-gun, Saitama Prefecture, Kanto Region, Honshu Island, Japan
  • Oyama and Meyama, Tsuyama City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
  • Oyama-cho, Toyama Prefecture, Chubu Region, Honshu Island, Japan
  • Oyama No. 2 deposit, Hanaoka mine, Odate, Akita prefecture, Tohoku region, Honshu Island, Japan
  • Oyama Occurrence, Eureka District, San Juan Co., Colorado, USA
  • Oyam District, Uganda
  • Oya Mine, Motoyoshi, Miyagi Prefecture, Tohoku Region, Honshu Island, Japan
  • Oya Mine, Oya-cho, Yabu-gun, Hyogo Prefecture, Kinki Region, Honshu Island, Japan
  • Oyashirazu beach, Ohmi, Itoigawa City, Niigata Prefecture, Chubu Region, Honshu Island, Japan
  • Øyestad, Arendal Iron Mines, Arendal, Aust-Agder, Norway
  • Øygarden, Hordaland, Norway
  • Oygarden Islands, Edward VIII Bay, Enderby Land, Eastern Antarctica, Antarctica
  • Oyhut, Grays Harbor Co., Washington, USA
  • Oyler Mine (Oyler Radium Mine; Nightingale Mine; Nightingale Claim), Fruita, Fremont District, Wayne Co., Utah, USA
  • Øynaheia, Froland, Aust-Agder, Norway
  • Oyon Province, Lima Department, Peru
  • Oyo State, Nigeria
  • Oyrargjogv, Vágar island (Vagur island), Faroe Islands (Faeroe Islands; Faeroes; Faroes), Denmark
  • Øystre Slidre, Valdres, Oppland, Norway
  • Oyukiya mine, Karumai, Iwate Prefecture, Tohoku Region, Honshu Island, Japan
  • Oyu Tolgoi (Turquoise Hill) Cu-Au deposit, Erdenetsogt, Ömnögovi Aimag, Mongolia
  • Oyuut Ulaar Ovoo Mine, Dzüünbayan, Dornogovi Aimag, Mongolia
  • Ozark Co., Missouri, USA
  • Ozark Creek Placer Mine (Bald Eagle Black Hawk), Florence District (French Creek District), Idaho Co., Idaho, USA
  • Ozark Extension, Florence District (French Creek District), Idaho Co., Idaho, USA
  • Ozarkher, Dindori (Dhindori), Nasik District, Maharashtra, India
  • Ozark lead mine, Fredericktown, Fredericktown District, Madison Co., Missouri, USA
  • Ozark Limestone Quarry, Mackinac Co., Michigan, USA
  • Ozark-Mahoning Group, Cave-In-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
  • Ozark-Mahoning Mine, Ozark-Mahoning Group, Cave-In-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
  • Ozark Mine (Bully Boy), Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
  • Ozark mine, Crater of Diamonds State Park (Arkansas Diamond Corp. Mine; Mauney Mine; Ozark Mine; Prairie Creek Lamproite), Murfreesboro, Pike Co., Arkansas, USA
  • Ozark Mine (Foster Camp; Ozark claims), Jarbidge District, Elko Co., Nevada, USA
  • Ozark Mine (Midas; The Big Ten), Oro Grande, Oro Grande District, San Bernardino Co., California, USA
  • Ozark Mine, North Fork District, Trinity Co., California, USA
  • Ozark Mine (Ozark shaft), Silvermine, Fredericktown District, Madison Co., Missouri, USA
  • Ozark Mine, Pierce City District, Clearwater Co., Idaho, USA
  • Ozark Placer, Calaveras Co., California, USA
  • Ozark Prospect, Highland District (Siberia District), Silver Bow Co., Montana, USA
  • Ozaukee Co., Wisconsin, USA
  • Ozbak Kuh Mine, Yazd Province, Iran
  • Ozdín, Poltár Co., Banská Bystrica Region, Slovakia
  • Ozekigoe, Otsu City, Shiga prefecture, Kinki region, Honshu Island, Japan
  • Ozernaya Mount, Dzheltul'skii massif, Kureika river, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia
  • Ozernaya pipe, Alakit-Markha, Daldyn-Alakit kimberlite field, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
  • Ozernoe Ag-Pb-Sb deposit, Asgat-Ozernoe zone, Yustid ore cluster, Altai Republic (Gorno-Altayskaya Autonomous Oblast'), Western-Siberian Region, Russia
  • Ozernoe Cu deposit, Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan
  • Ozernovskoe deposit, Kamchatka Oblast', Far-Eastern Region, Russia
  • Ozerny deposit, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
  • Ozette Beach Placer, Ozette, Cape Flattery District, Clallam Co., Washington, USA
  • Ozieri, Sassari Province, Sardinia, Italy
  • Ozier Mine (Ozer), Bear Valley Mining District, San Bernardino Co., California, USA
  • Ozinki, Saratov Oblast', Povolzhsky Region, Russia
  • Ozola Valley, Ligonchio, Reggio Emilia Province, Emilia-Romagna, Italy
  • Ozsdola (Ojdula), Covasna Co., Romania
  • Ozukure cliffs, Yaizu, Shizuoka prefecture, Chubu region, Honshu Island, Japan
  • Ozzna Creek Prospect, McGrath District, Yukon-Koyukuk Borough, Alaska, USA

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