 | | Report (issue) | | RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEK COUNTY COLORADO This report concerns work done on behalf...RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEK COUNTY, COLORADO By John D. Wells and Jack E. Harrison...GOLDEN O 1 lDAHO SPRINGS GEORGETOWN J CLEAR EFFERSON CREEK J i ARK ) 20 Miles _l 10 0 i ............ i Figure 1. Index map of central Colorado showing area covered by reconnaissance. ii RADIOACTIVITY...RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEITCOUNTY, COLORADO By John D. Wells and Jack E. Harrison |  | | Report (volume) | | GEOLOGY AND ORE DEPOSITS OF THE ' CREEDE DISTRICT, COLORADO BY WILLIAM H. EMMONS AND ESPER S. LARSEN WASHINGTON.......................................... Outlet Tunnel quartz latite....................................................... '. ................ Willow Creek rhyolite......................................................... 49 Flow near mouth of Deerhorn Creek................................ 49 Outcrops, weathering............................................. Rat Creek quartz latite.................................. |  | | Report (issue) | | Deposits Central Part of the Front Range Mineral Belt Colorado By P. K. SIMS and others GEOLOGICAL SURVEY PROFESSIONAL... _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher mines ______________...erokee vein ________________________ - Pewabic tunnel, by A. A. Drake, ·J r __ .:. ___ _ Silver Hill..._---Blackhawk Lode No.2 claim ____________ _ Powhatan tunnel, by A. E. Dearth _______ _ v 39 39 39 39 39 41...Lawson-Dumont-Fall River district, by C. C. Hawley and F. B. Moore _____________________________ _ Fall River |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Description of principal mines-Continued Boulder County-Continued Other areas __________________________...F. B. Moore______________________________ Clear Creek CountY------------------------------------------Idaho...__________ ------_____________________ 71 72 Gilpin CountY-----------------------------------------------Central |  | | Report (issue) | | uranium in northern Saskatchewan, Canada; near Blind River, Canada ; and in the Witwatersrand, South Africa...such areas as the Front Range mineral belt of Colorado; the Boulder batholith area, Montana ; the Sierra...Western States, including Arizona, California, Colorado~ Idaho, Montana, Nevada, New Mexico, and FRANK...for uranium deposits, by the zoic rocks of the Colorado Plateau, are characterized lack of definite data...known to occur in the Leyden Coal mine~ Jefferson County, Colo., as early as 1875 (Berthoud, 1875, p. 365) |  | | Report (volume) | | STATES Alabama Alaska Arizona Arkansas California Colorado , Page 69 Connecticut 120 Georgia 121 165 Idaho...and B. C BRITISH COLUMBIA: Xew boundary or Salmon River district MANITOBA: Northern Manitoba 1587 ONTARIp:...137 Alaska Mines Corp., Alaska 135 Alaskan Copper River Mng. Co.. Washington 1477 Abska Pittsburgh Gold...Co.. Utah 1381 Albert Beacon Gold Mining Co., Colorado 591 Albert Copper Co., Quebec 1654 Albion Cons...Mining Co., Michigan.... 753 Almaden Mines Co., Colorado.... 498 Almaden Quicksilver Mines Co., Spain 1818 |  | | Report (volume) | | Mines. 11312 Hessler Road, Cleveland, Ohio. Aspen, Colorado. BOYLSTON, Herbert M., Consulting Metallurgical...Mexico. BUTCHART, W. A., Ore Concentration, Denver, Colorado. BUTLER, G. M., Mining Engineer and Geologist...Denver. Liberty Bell Gold Mining Co., Telluride, Colorado. COLE & CO., Assayers, Chemists, Ore Buyers, Box...Metallurgist, 804 Equitable Building, Denver, Colorado. GARDNER, James H., Geologist, 121 E. 6th St....LITTLE, Arthur D., Inc., Mining Engineers Charles River Road, Cambridge, Mass. LORING, W. J., Mining Engineer |  | | Report (issue) | | ___________ Geology _.________---__--__-------Alta Tunnel & Transportation Co _____ History and development...Cottonwood district 1_.____^___________ Frederick tunnel.-----.----------------West Toledo.....-------------------...________-_---------_----_Columbus Consolidated and Wasatch drain tunnel._________.-______-__-_-------History and production...Cabin.________________________________ Tom Moore tunnel..,___________________ Emma ________________________________..._____________________ South Park......_________________ Water Fall .__-___.__________..._-._. Pacific_______________________________ |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...association of radium, uranium. and vanadIum on the Colorado Plateau sparked several periods of exploratIon |
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