Chromite from California, USA

Chromite, etc.

Clear Creek area, Picacho Peak, San Benito County, California, USA

Chromite, etc.

Anderson Lake, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch, Morgan Hill, Santa Clara County, California, USA

Chromite

St. Johns Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USA

Chromite

Clear Creek area, Picacho Peak, San Benito County, California, USA

Chromite, etc.

Clear Creek area, Picacho Peak, San Benito County, California, USA

Chromite, etc.

Anderson Lake, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch, Morgan Hill, Santa Clara County, California, USA

Chromite

St. Johns Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USA

Chromite

Clear Creek area, Picacho Peak, San Benito County, California, USA

Chromite, etc.

Clear Creek area, Picacho Peak, San Benito County, California, USA

Chromite, etc.

Anderson Lake, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch, Morgan Hill, Santa Clara County, California, USA

Chromite

St. Johns Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USA

Chromite

Clear Creek area, Picacho Peak, San Benito County, California, USA


USA
California Alameda County Cedar Mountain Mining District Cedar Mountain ⓘ ~~Clark claim (Vernon Clark claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Douglas Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Manzanita Grove prospect (Winship-Doak; Winship-Donovan)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Mendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine)~~	USGS MRDS database (2005).
ⓘ Pine Grove occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrences [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrences [3]	Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 115. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 13-378: 267 Hanks, Henry Garber (1886), Sixth report of the State Mineralogist: California Mining Bureau. Report 6 part 1, 145 pp.: 100 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136
Lookout Point ⓘ Cummings prospect (Merchant; Draghi)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jones prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Livermore Mining District (Tesla District) Tesla ⓘ Mendenhall Mine	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Rogers, Austin Flint (1912), Notes on rare minerals from California: Columbia University, School of Mines Quarterly: 33: 380
Amador County Bisbee Peak ⓘ Joe Garibaldi Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Taylor Ranch Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [3]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 117
Four Corners ⓘ Detert property (Detert group)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mokelumne River	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
Pardee Mining District Chrome Mountain ⓘ ~~Ellis property (Boss Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Fields Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sunnybrook ⓘ Allen property (Wheeler Mine; Johnson lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Carr and Mefford Mine (Mooney claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Courtwright property (Daggett lease)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Courtwright property (Woods and Roach lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mountain Spring House area ⓘ Unnamed Cr occurrence [2]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 136
ⓘ Unspecified Cr occurrence [4]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 116
Rocky Point ⓘ Dooley property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sugarloaf Peak ⓘ Wait property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Butte County Big Bar Mountain ⓘ Big Wonder claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Liberty Bond claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Hope and Mary Jane claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mary Jane Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ River Side claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Section 13 occurrence (Happy Hollow; Southern Pacific property; April Fool [?])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Swayne Mine (Big Pine claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ War Bond group (Liberty group W. W. I)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Big Bend ⓘ Dowden occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Clipper Mills Mining District Clipper Mills ⓘ Diamond Queen Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dickey and Dreisbach prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Powell occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Deadwood ⓘ Lockridge property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Faust Mining District (Forrest Mining District) Forks of Butte ⓘ Anti-Axis claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Forbestown Mining District Forbestown ⓘ ~~P.U.P. Mine (P.U.P. Zenith Mine; Zenith Chrome Mining Company Mine; Zenith Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Magalia Mining District Irish Town ⓘ Helmke occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Lambert Mine 3 (Lambert Mine)~~	USGS MRDS database (2005).
Lovelock ⓘ Reynolds No. 2 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Magalia Sawmill Peak ⓘ Christian Place occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Parkeson claim (Old Utah Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Messila Mining District Sausage Mountain Parish Camp ⓘ Hendricks No. 2 occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Taylor property (The Gray Boy deposit; W.W. I)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Park's Ranch Mine (Lime Saddle; Iron Point; Curtis Mine; J.G. Curtis property; J. G. Curtis Property Parke's Ranch Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mountain House ⓘ Lone Star claim (Day claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Parkhill ⓘ ~~Clark Chrome Mine (Clark Mine; David Mine; War Eagle Mine; War Eagle deposit; War Eagle and Miller deposits; Mountain of Chrome claims [?])~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hendricks No. 1 Mine (Hendricks prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. (2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pompys Point ⓘ Big Bend occurrence (Norris and Noyes property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pulga ⓘ King prospect (3)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ King prospects (1)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Bill Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Reynolds No. 1 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rohrer and McCrosky Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Section 35 Mine (Little Corbett lease; Grahm-King lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Simmons prospect (Sunnyslope; Nerva claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Stewart Mine (Brune and Stanley property; Big Bar lease; Agard and Stewart lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Stokes prospects	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Twin Cedars claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Stirling City Mining District Inskip ⓘ Glen prospect (Sourdough prospect; W.W. I)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Yankee Hill ⓘ Green Ridge claim (Dynamite Kid; Wells Mine; WW I)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rainbow Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Calaveras County East Belt Murphys Mining District (Esmeralda Mining District; Sperry Mining District) Murphys ⓘ ~~Madrid Mine (True Blue Mine; Genochio Mine; Medrid Mine)~~	Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 123 Van Nostrand Reinholt Press: 153 (map 4-4).
Soapstone Hill ⓘ Unknown Cr prospect [11]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Valenti claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136
Railroad Flat Mining District Railroad Flat ⓘ Burns and O'Neill property (Burns & O Neill)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Late property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Foothill Copper Belt Campo Seco Mining District ⓘ Campo Seco	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 136
Carmen City ⓘ Alta Mine [2]	Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ Clary & Langford Mine (Porter and Springs Mine; Nassau)	Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ ~~Clary and Langford Mine (Langford deposit; Porter and Spring; Porter and Springs; Nassau)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Hinch Mine (Hinch and Clary deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Matthew Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [4]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 121
ⓘ Unspecified Cr occurrence [6]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 123
ⓘ ~~Walker Mine (Chaparral; Brushy Hill)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Copperopolis ⓘ ~~Bear Mountain Ranch occurrence~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Burnham Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Davis Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ ~~Stone Mine (Trask Mine; Longton Mine; Coffer Mine; Trask and Stone lease)~~	Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ Unknown Cr prospect [10]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Elkhorn Station ⓘ Unknown Cr occurrence [8]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
French Creek Mining District Funk Hill ⓘ ~~Peri Mine (Peri property)~~	USGS MRDS database (2005).
Mountain Top ⓘ ~~American Asbestos & Manufacturing Company Mine (American Asbestos Mine; Voorhees)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Bowie Estate Mine (J. W. Bowie claims)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Dean Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Liberty Mine (McFall Mine)~~	USGS MRDS database (2005).
ⓘ ~~Mayflower Chrome Mine (Burnham and Wilson Mine; Mayflower property; Mayflower deposit)~~	USGS MRDS database (2005).
ⓘ Unnamed Cr occurrence [3]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 193. Cater, F.W., Jr. (1948b), Chromite deposits of Calaveras and Amador Counties, California: California Division Mines Bulletin 134, part III, Chapter 2: 50
Milton Salt Springs Valley ⓘ Wright Ranch	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 267
ⓘ Tower Ranch	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 267
ⓘ Mokelumne River	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
Mount Ararat ⓘ Unknown Cr occurrence [7]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pardee Mining District Buena Vista Mountain ⓘ ~~Ellingwood and Vogelsang Mine (Ellingwood Mine; McAfee lease; City of Stockton property)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Vogelgesang Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Maxwell claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Camp Pardee ⓘ ~~Fields and Stoker Mine (Briggs lease)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ ~~Gillam Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~McNamara Mine (McNamara property)~~	USGS MRDS database (2005). Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report 2. California Division of Mines and Geology
ⓘ ~~Neugebauer Mine~~	USGS MRDS database (2005).
ⓘ Unnamed Cr occurrence [5]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 122
ⓘ ~~Ward and Lyons Mine (White Hawk mining claim; Red Hawk Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Economic Geology (1986) 81: 1261-1271.
Valley Springs ⓘ Big Pine Mine	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 13-378: 267
ⓘ ~~Granadas prospect~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
San Diego Gulch Noble Mine ⓘ Noble Mine area	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Browne, J.R. (1869), Report of J. Ross Browne on the mineral resources of the states and territories west of the Rocky Mountains (US Treasury Dept.), 674 pp., H.H. Bancroft and Co., San Francisco [reprint of 2]: 225
Vallecito Mining District Vallecito ⓘ Janokis Ranch	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 169
West Belt Hodson Mining District (Madam Felix Mining District; Felix Mining District) Salt Spring Valley Felix ⓘ Unspecified Cr occurrence [2]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 138. Tucker, W. Burling (1929), Kern County: California Mining Bureau. Report 25: 55, 56
Lost City ⓘ Unknown Cr occurrence [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Colusa County Coast Ranges Cooks Mountain ⓘ Princess Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 124
Stonyford ⓘ Chrome Wonder deposit (Chrome Wonder Mine)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Logan, C.A. (1918), Chromium, in: Bradley, W.W. et al, Manganese and Chromium in California, California State Mining Bureau Bulletin 76: 123
ⓘ Liberty Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Teathers prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District) Wilbur Springs ⓘ F. C. Innes prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr mine [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed road quarry [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 123
ⓘ Stony Creek	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Rogers, J.H. (1891) Colusa County, its history and resources.
Contra Costa County Clayton Eagle Peak ⓘ Mount Zion Chrome prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mount Diablo (Mt Diablo) North Peak ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
Del Norte County Crescent City ⓘ Unspecified Cr-Cu-REE occurrences [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Horner, R.R. (1918), Notes on the black sand deposits of southern Oregon and northern California: US Bureau Mines Tech. Paper 196, 39 pp.: 35
Klamath Mountains Adams Station ⓘ Fairview occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Margy occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Bald Hill ⓘ Billy Boy Hawkins Mine (Hawkins Mine; Billy Boy Mine; Divide claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Blue Creek Mountain ⓘ Blue Creek Mountains Mine	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 390 Anonymous (1962), World news on mineral occurrences: Rocks & Minerals: 37: 153
Boulder Ridge ⓘ Shelly Creek Saddie occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cant Hook Mountain ⓘ Contact claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Fourth of July Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gilmore prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Crazy Peak ⓘ Alyce & Blue Jay occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Diamond Creek Mining District Rockland High Plateau Mountain ⓘ Bluebird Mine (High Point Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Bonanza claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Brown Mine (High Plateau Browns Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 193.
ⓘ Judy Mine (Victory No 2; Judy claims 1-3-4; Judy group; Hicks Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Peridotite Canyon ⓘ Dipper Extension Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [3]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pine Flat Mountain ⓘ Hole in the Ground Mine (Lucky Queen Gold claim; Sarina)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [4]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [8]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Richey property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Wilmot occurrence (Patrick Creek; Shulte Brothers; High Dome)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Fox Ridge ⓘ Lone Grave Nos. 1 and 2 Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Muzzle Loader Mine (Stevens Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Stevens No. 2 Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
French Hill ⓘ ~~French Hill Chrome Mine (French Hill deposit; Tyson Mine; J. & W. Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
French Hill ⓘ Star and Rough and Ready Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Gasquet ⓘ Angela Chromite Mine (Angela deposit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Blackjack deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Gasquet Mountain ⓘ Niggerhead occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [7]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Zinc Saddle group (Gordon Mountain group)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Gordon Mountain ⓘ Camp Eight Mine (Camp 8 claim; Camp 8 group; St. Patrick claim)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Division Mines Report 37: 123
ⓘ Cooncan prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Goose Egg Mine (Apex Mine; Apex Goose Egg Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Patterson No. 1 Mine (Johnson Place; J. H. Crothers)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rowan Mine (Big Dipper Mine; Bowan Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sunset Mine (Darnell Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Little Rattlesnake Mountain ⓘ Big Five Mine (Inman No. 5 Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Carla Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Crescent claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cuneo Inman No. 1	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Deleray and Rodgers claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Goose Creek claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Inman No. 2 Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Lode prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Old Doe Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pigeon Roost Spring claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Section Sixteen claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Soldier's Well Mine (McClendon Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sourpuss claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [11]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Low Divide Mining District High Divide ⓘ ~~Mountain View Mines (Tyson Mine; High Divide Mine)~~	USGS MRDS database (2005).
Low Divide ⓘ Gooch claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ One Eyed Jack Nos. 1; 2 and 3 (Zoar)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lower Coon Mountain ⓘ Coon Creek Number 1 Mine (Pine Flat; Pine Flat Bench)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Patrick Creek Mining District Cold Spring Mountain ⓘ Wonder Mine (Bienick & Martin; Applicants)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Elk Camp Ridge ⓘ Unnamed Cr-PGE prospect [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [6]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
High Dome ⓘ Chrome Hill Number 1 Mine (Hance & Webb; Hance and Webb; Theone)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Egger's claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Holiday Mine (Holiday Chrome Mine; Holiday group; High Dome Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Logan Mine (High Plateau Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tangerine claim (Toujoure Gai Mine; Elk Camp Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE prospect [10]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pigeon Roost Pigeon Roost Spring ⓘ Barrick Mine (Buckskin Mine; Bar Rick Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rattlesnake Flat ⓘ Midnight occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rattlesnake Mountain ⓘ Mud Spring Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rocky Saddle Red Mountain area ⓘ Big Red Mountain Chrome Mines (Claim No. 1; Red Mountain claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Scott Bar area ⓘ Sunrise Nos. 1 and 2 Mine (Stinson Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Youngs Peak ⓘ White Feather occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Smith River	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136
El Dorado County Clarksville Mining District Clarksville ⓘ Cowell Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dickson Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [2]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 132-143
El Dorado Hills ⓘ ~~Miller prospect (Miller deposit)~~	USGS MRDS database (2005).
ⓘ ~~Walker Mine (Walker property; Darrington)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
East Segment Mother Lode Georgetown District Buckeye ⓘ Stafford Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Fornis ⓘ Wilson Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Georgetown ⓘ Black Oak Mine [2] (Black Oak deposit; Cassiorina Mine; Cassiorini Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Henser Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Meadow Brook ⓘ Green claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Latrobe Mining District Flonellis ⓘ Glenn prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Zanini occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Latrobe	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 139 Hanks, Henry Garber (1886), Sixth report of the State Mineralogist: California Mining Bureau. Report 6 part 1, 145 pp. (includes catalog of minerals): 100 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 136
ⓘ Bryant Mine [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ever prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Freeman Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gold Bug claims (Ehler and Hoff claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Helemar Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hoff Mine (Trio Chrome Company lease; Trio Chrome Company leases)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Murphy Mine~~	USGS MRDS database (2005).
ⓘ Smith Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. (2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Trio Chrome Company placer	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Newcastle	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 132-143
Northwest Segment Mother Lode Greenwood District Penobscot Farm ⓘ Central Pacific Railroad Mine (Central Pacific R. R.; Central Pac. R.R.)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pilot Hill Mining District Pilot Hill ⓘ Pilot Hill prospect (Pilot Hill Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rattlesnake Bar Mining District Goose Flat ⓘ Kelly prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Salmon Falls Mining District (Flagstaff Hill area) Flagstaff Hill ⓘ ~~Burnett property (Burnett Ranch)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Central Railroad prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Darrington Mine (Darington deposit; Darington Gurney; Gurney property; McGuire; Holbrook)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Farmer Swanton Mine	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195 Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 7-8, 23
ⓘ Hoosier Gulch placers	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine) ⓘ Pillikin Mine area 1 (East Basin)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 10	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 11	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 2 (Bonanza King Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 3 (West Basin)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 4 (Chrome Gulch)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Pillikin Mine area 5 (Placer Chrome Company workings; Placer Chrome Company Mine; Placer Chrome Mine)~~	USGS MRDS database (2005).
ⓘ Pillikin Mine area 6	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 7	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 8	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pillikin Mine area 9	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Steele Mine (Steel deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Volcanoville Mining District Volcanoville ⓘ Apex Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chrome Divide group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hill-Top Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Knoff Mine (Austin Mine; Ladue property; Federwitz; Knoff Austin; Bald Mountains)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ogle Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ruby Consolidated Mine (Green Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
West Belt Coloma Mining District Coloma ⓘ Laicy claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ McCurdy Mine [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ O'Brien Mine (S-Bend Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Shelley Mine (Wolf Mine; Shelly Mine; Shelley Wolf Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sheppard Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Simon Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sutter Mill Bar and River (Old Sutter Mill site) ⓘ Sutter's Mill meteorite	Zolensky, M. & 21 others (2014) Mineralogy and petrography of C asteroid regolith: The Sutter's Mill CM meteorite. Meteoritics & Planetary Science 49(11): 1997-2016. (Nov 2014)
ⓘ Tropper occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 139 Hanks, Henry Garber (1886), Sixth report of the State Mineralogist: California Mining Bureau. Report 6 part 1, 145 pp.: 100 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136
Lotus ⓘ Maxwell Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Deer Valley Mining District Four Corners ⓘ Wiley Mine (Lilyama Copper Gold Mines; Pioneer-Lilyama)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mormon Hill ⓘ Simpson Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Shingle Springs Mining District Brandon Corner ⓘ Bonetti prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Brandon Mine [4]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ Forni Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pfeiffer Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cold Springs ⓘ McDonald and Buys Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Williamson Mine (Hector Williamson)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Kingsville ⓘ Irish Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mount Aigare Fort Yuma Mine area ⓘ Unspecified Cr occurrence [3]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Fairbanks, Harold W. (1894), Geology of a section of El Dorado County: California Mining Bureau. Report 12: 479
Rescue ⓘ Gordon Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Thomas & Meldrum Mine (Thomas and Meldrum Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Fresno County Archer Camp ⓘ James-Corbett Mine (Corbett-Byles Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Big Dry Creek Mining District Green Mountain ⓘ Blue Bush Mine (Wolfe Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Perry property (Fairview deposit; Perry placer)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Powers Mine (H. H. and Moonshine claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Second Thought Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unknown Cr mine [16]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Humphreys Station ⓘ Black Bow Mine (Strassbaugh; Black Bow Avery prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Kirkland Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unidentified Cr mine [15]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Victor Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Coalinga ⓘ Coalinga Asbestos Mine (Coalinga Mine; Coalinga Asbestos deposit)	Wise, W. S., & Moller, W. P. (1995). Geology and Mineralogy of the New Idria District: San Benito and Fresno Counties, California. Rocks & Minerals, 70(1), 30-35.
Condon Peak ⓘ ~~Jeanne Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Rhodes Byle and Gribble Mine (Rhodes; Byle and Gribble Mining property)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hog Mountain ⓘ Chrome Jade Nos. 1; 2; 3 (Dead Sheep; Moore claims; Black Slide)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Exposed View prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Jack Sprat group ⓘ Jack Sprat No. 1 Mine (Jack Sprat Number One Mine; Carson Mine; Sweet Mine; Carson & Sweet)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jack Sprat No. 4 (Black Joe Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jack Sprat No. 5 Mine (Lookout Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jack Sprat No. 6 Mine (Valley View Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Nose Mine (Overlap of Jack Sprat Nos. 3 & 4 claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Rock Mine (Buckhorn Mine; Poison Oak)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Long Ledge group ⓘ Long Ledge No. 1 Mine (Wood's Mine; Grizzly Bear Mine; Wood's Grizzly Bear Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Long Ledge No. 2 (Riverview Mine; Pearson property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Long Ledge No. 3 (Rose lease; Black Bear Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Red Slide Nos. 1 & 2 Mine (No. 2 Vance; Woodrow Wilson Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rose claims 8	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Saddle Blanket group ⓘ Black Hawk Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Surprise Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tippecanoe Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Wedge Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Woodworth prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Owl Mountain ⓘ Houghton property (Spike Buck claim [?])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Terrill property (Eagles Nos. 1; 2; Jumbo Nos. 1; 2)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Panoche Hills	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 391. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 396
Red Mountain [2] ⓘ Black Mammoth Nos. 1 & 2 prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Trimmer ⓘ Chrome Gulch group	Econ Geol (1986) 81:1261-1271
ⓘ Cripe property (East Side Red Dome claim [?])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jensen Nos. 1 & 3 Mine (Jensen group)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Watts Valley ⓘ Despot and Moreau Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Doyle Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Wright Mountain Butler Estate Chrome deposit ⓘ Mistake Mine (Butler Estate Mine; Mistaken; Big Ridge & Mistake Mine; James-Thickston; James-Thickstun Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Whitney, J.D. (1865), Geological survey of California, Geology, 1, Report of progress and synopsis of the field work from 1860to 1864: 59
Glenn County Coastal Range Bald Hill ⓘ High Point Mine	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Boalich, E. S. (1918), Manganese and chromium: California Mining Bureau. Preliminary Report 3, 2nd. ed.: 25
Deer Mountain ⓘ Conklin and Williams prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr claims (2)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 147
Doe Peak ⓘ Luce claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Red Mountain Black Diamond group ⓘ ~~Black Diamond Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unknown Cr occurrence (1)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 198 Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 268
Sugarloaf Hill ⓘ Chrome King Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Humboldt County Coastal Range Blocksburg Charles Mountain ⓘ Unnamed Cr occurrence [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [8]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Woods prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dinsmores ⓘ Unnamed Cr occurrence [11]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [10]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Horse Mountain ⓘ Unnamed Cr mine [14]	USGS MRDS database (2005), loc. file ID #10285351 & 1109220. Laizure, Clyde McK (1925), San Francisco field division: California Journal of Mines and Geology, California Mining Bureau (Report 21): 21: 306
ⓘ Unspecified Native Copper and Chromite occurrences	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 148
Redwood National Park ⓘ French Camp prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [3]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Yager Junction ⓘ Unnamed Cr occurrence [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Klamath Mountains Hoopa Indian Reservation Hoopa ⓘ Hoopa Indian Reservation prospect	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Averill, Charles V. (1941), Mineral resources of Trinity and Humboldt Counties: California Journal of Mines and Geology, California Division Mines (Report 37): 37: 505-506
Pecwan (Pekwan) Onion Mountain ⓘ East Fork occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Onion Mountain prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pecwan Creek ⓘ ~~Pecwan Mine (Pecwan deposit; Englebright Mine; New Moon Mine)~~	USGS MRDS database (2005).
ⓘ Unnamed Cr occurrence [2]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. O’Brien, J.C. (1943), Current notes on activity in the strategic minerals, Redding field district: California Division Mines Report 39: 78
ⓘ Unnamed Cr occurrence [4]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Wilder Mine (Fish Creek; Man O'War claims)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~White Cedar deposit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Somes Bar area ⓘ Little Wilder Creek	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Averill, Charles V. (1941), Mineral resources of Trinity and Humboldt Counties: California Division Mines Report 37: 505, 506
ⓘ Unnamed Cr occurrence [7]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Weitchpec Mining District Opegoi ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. O’Brien, J.C. (1943), Current notes on activity in the strategic minerals, Redding field district: California Division Mines Report 39: 78
Orleans (Orleans Bar; New Orleans Bar) ⓘ Red Gap Mine (Red Cap Mine ?)	Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 186, 188 & Pl. 19.
Wright Place ⓘ Big Rock Chrome claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mosquito Lake Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rivera Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [6]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Kings County Parkfield Mining District Table Mountain ⓘ Unnamed Cr deposit [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [3]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W. (1916b), Fresno and Kings Counties: California Mining Bureau. Report 14: 527
Tar Peak ⓘ Unnamed Cr occurrence [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lake County Bartlett Springs ⓘ Smaker property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cabbage Patch ⓘ Cabbage Head occurrence (Root Ridge claim; Cabbago Send)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [17]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Laizure, Clyde McK (1943), Discoveries in the strategic minerals Bradley, W.W. (1916a), Colusa, Glenn, Lake, Marin, Napa, Solano, Sonoma, Yolo County: California Mining Bureau. Report 14: 204 San Francisco field district: California Journal of Mines and Geology, California Mining Bureau (Report 39): 39: 53-57
East Mayacmas Mining District Caldwell Pines ⓘ Brown prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cobb ⓘ Gordon Springs deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Seigler Springs ⓘ Popp and Nichelini claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [6]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Whispering Pines prospect~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Detert Reservoir ⓘ Butler claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Glad I Found It claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Magnola Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mastick Ranch deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unknown Cr occurrence [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Howard Springs ⓘ Unnamed Cr occurrence [11]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Middletown East of Middletown ⓘ Unnamed Cr occurrence [3]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 148, 149 Bradley, W.W. (1916a), Colusa, Glenn, Lake, Marin, Napa, Solano, Sonoma, Yolo County: California Mining Bureau. Report 14: 204
Great Western-Mirabel group ⓘ Great Western Mine (Laguna Western; Black Bart Mine; Tucker lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Harp and Sons Ranch deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Holmstatt deposit (Holmstedt deposit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Kangaroo Court Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sutro Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Enterprise ⓘ Unknown Cr occurrence [8]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Glenview ⓘ Schaffer prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Young Adams prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hidden Valley Lake ⓘ Herman prospect (Smythe prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Howard Springs Western Group of Lake County ⓘ Copsey claims (Manzanita; Uncle Josh claims; Mint; Coppey claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Knoxville Mining District Knoxville area ⓘ Unnamed Cr prospects [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lake Pillsbury ⓘ Bull Mountain lode	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Parramore Springs ⓘ Unknown Cr occurrence [7]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District) Clear Lake Oaks ⓘ Unnamed Cr occurrence [18]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [4]	Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Dow, D.H. & T.P. Thayer (1946), Chromite deposits of the northern Coast Ranges of California: California Division Mines Bulletin 134, part 2: 17 Van Nostrand Reinholt Press: 496.
Clear Lake ⓘ Unnamed Cr occurrence [10]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lower Lake ⓘ Red Devil claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Los Angeles County Sierra Pelona Mts (Sierra Pelona Range) Green Valley Bouquet Canyon ⓘ Bouquet Canyon deposit	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Tucker, W. Burling (1927), Los Angeles, Mono Counties: California Mining Bureau. Report 23: 288
Madera County ⓘ Madera	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 140, 390.
ⓘ Marin County	Pelletier, 1962. Mineral Species & Localities of Marin County
San Geronimo ⓘ Maillard Ranch occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Watts, Wm. L. (1893), Alameda, Colusa, Del Norte, Fresno, Glenn, Humboldt, Marin, Mendocino, Merced, Placer, Sacramento, Santa Clara, San Joaquin, Sonoma, Stanislaus, Sutter, Kern, Lake, Contra Costa, Tehama, Tulare Counties California Mining Bureau. Report 11: 253
Mariposa County Coulterville Mining District Coulterville Horseshoe Bend Mountain ⓘ Riverside Chrome Mine (Purcell-Griffin Mine)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 151
Peñon Blanco Peak ⓘ Fossow property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Reed property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr deposits [2]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bowen, O.E., Jr. & C.H. Gray, Jr. (1957), Mines and mineral deposits of Mariposa County, California: California Journal of Mines and Geology: 53(1&2): 34-343 Cater, F.W., Jr. (1948a), Chromite deposits of Tuolumne and Mariposa Counties, California: California Division Mines Bulletin 134, part III, Chapter 1: 1-32
Mendocino County Coastal Range Duncan Springs ⓘ C. W. Johnson prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dunlap Place ⓘ Unnamed Cr mine [7]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hills West of the Russian River ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 268 Crawford, James John (1896), Thirteenth report of the State Mineralogist: California Mining Bureau. Report 13: 49
Hopland ⓘ Unnamed Cr mine [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Leggett Little Red Mountain ⓘ Little Red Mountain Dunn	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sugar Pine occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ United Nations occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [8]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
McClure Place ⓘ Unknown Cr occurrence [6]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pratt Place ⓘ Red Mountain Creek	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Reeves Place Leech Lake Mountain ⓘ Unnamed Cr deposit [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Shields occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Twin Rocks ⓘ Lloyd occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Ukiah ⓘ Moore Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [2]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. McGregor, A. (1890), Del Norte, Humboldt, Mendocino, Shasta Counties: California Mining Bureau. Report 10: 312
Willits North of Willits ⓘ Unspecified Cr occurrence [3]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23
Largo ⓘ Crawford occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Red Mountain Mining District Red Mountain Miner Ridge (Miners Ridge) ⓘ Graham group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unspecified Cr occurrence [4]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 390 Hanks, Henry Garber (1886), Sixth report of the State Mineralogist: California Mining Bureau. Report 6 part 1, 145 pp. (includes catalog of minerals) […(abstract): Neues Jahrb., 1887, Band 2: 474]: 140
Merced County Snelling Mining District Snelling ⓘ Merced River	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
ⓘ Yuba Consolidated Goldfields Placer Mine	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
ⓘ Monterey County	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 391.
Parkfield Mining District ⓘ Parkfield	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W. & C.A. Waring (1919), Monterey County: California Mining Bureau. Report 15: 599 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136 Goldsmith, E. (1873), Analysis of chromite from Monterey County, California: Academy of Natural Sciences of Philadelphia Proceedings: 25: 365
Santa Lucia Mts (Santa Lucia Range) Los Burros Mining District Burro Mountain ⓘ Evans Ranch prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Lilly Group Mine (Lilly group deposit)~~	USGS MRDS database (2005).
Plaskett Los Burros Creek tributary ⓘ ~~Daisy Mine (South Slope Mine; Little Daisy Mine; Eldebren Chrome Mine)~~	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 136, 194. Bradley, W.W. (1939), Thirty-fifth report of the State Mineralogist: California Division Mines Report 35: 497 Bradley, W.W. (1938), Thirty-fourth report of the State Mineralogist: California Division Mines Report 34: 354
Napa County Calistoga Twin Peaks ⓘ Twin Peaks Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
East Mayacmas Mining District Aetna Springs ⓘ Astute Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chrome Center claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Crystal Creek claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Fourth of July claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Glad I Found You No. 2 claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tarry claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [13]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Middletown area ⓘ Along Knoxville-Middletown Road	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Boalich, E. S. (1921), Mendocino, Monterey, Mono, Napa, Solano, Stanislaus Counties: California Mining Bureau. Report 17: 158 Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 156, 157 Crawford, James John (1896), Thirteenth report of the State Mineralogist: California Mining Bureau. Report 13: 50 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 136
Pope Valley ⓘ Elder claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Meadow prospect	Dow, D.H. & T.P. Thayer (1946), Chromite deposits of the northern Coast Ranges of California: California Division Mines Bulletin 134, part 2, chapter 1: 24-25.
Samuel Springs Samuel Springs claims ⓘ Blue Jay; Last Chance; & Trout Creek claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Buzzard & Buzzard No. 2 claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dottie D.; Mistake; Cedar Rough; & Meadow claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eagle; Hampton; Viola; Lost Horse; & Lizzie P. claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Honolulu Lady claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Knoxville area ⓘ Black Hawk claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cigarette Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dollerhyde claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ferris claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hightower claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lone Pine Mine	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282
ⓘ Nevada claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Turner Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [3]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Knoxville Mining District Knoxville ⓘ Grey claim (Grey Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ Moore Mine (Marshall and Vanderbilt claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ Mullaly Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine)	Dana 6: 1096.
ⓘ Unnamed Chromite prospect [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [14]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospect [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lake Hennessey ⓘ Sullinger claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Girl Mine	Econ Geol (1986) 81:1261-1271
Monticello ⓘ Graves Ranch Mine (Graves Ranch deposit)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Boalich, E. S. (1921), Mendocino, Monterey, Mono, Napa, Solano, Stanislaus Counties: California Mining Bureau. Report 17: 158
Spanish Flat ⓘ Antone Nichelini Mine (Nichelini Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ Unnamed Cr prospect [12]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Nevada County Cherry Creek Acres ⓘ Sleeman occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Chicago Park Moulton prospects ⓘ Rolpholm Ranch prospect (Rolpholm Ranch; Rolph Ranch)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Schmidt property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Weisgien property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Numitor occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Shrull prospect (J.H. Shrull)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dew Drop ⓘ Half Chrome Mine (Limekin Mine; Wolf Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sweet Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Thompson Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tomkin lease	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Grass Valley Mining District Grass Valley ⓘ Alta Hill Mine (Alta Hill; Alta Hill Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Baker prospect (Davey prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Davey prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dickerson property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Geach property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Golden Gate prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Grass Valley Extension Cr occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Holseman Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Standard Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Williamson Brothers and C. M. Cole prospect (Williamson and Cole claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
La Barr Meadows ⓘ Bowden prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Newtown ⓘ Codd prospects	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mulcahy prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Porter property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Indian Springs ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
Lowell Hill Mining District Negro Jack Hill ⓘ Bartholomew-Simms Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Maguire prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Nevada City Mining District Glenbrook ⓘ Hooper prospect (A. E. Hooper occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Snyder property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Indian Flat ⓘ Eden claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Nevada City ⓘ Hooper prospect (A. E. Hooper)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Merrifield property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sherman Ranch occurrence (Hoeft lease [1918])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Waite property (White occurrence; White Estate Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
North Bloomfield Mining District Relief ⓘ Relief Hill (Relief; Relief Hill Blue Lead; Morning Star; IXCL)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rough-and-Ready Mining District Rough and Ready ⓘ Dorsey and Ridge claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Washington Mining District (Omega Mining District) Alpha ⓘ Olsen prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Victory claim (Mount Hill Chrome Mine [1917-1918]; Victory Hill [1941])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Washington ⓘ Flintlock Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gillis Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Moscatelli No. 1 claim (Pete Moscatelli Chrome occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Moscatelli No. 2 property (Lucky Bluff claim [WWI]; Lucky Friday claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rapid Fire claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Red Ledge Mine	Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York. Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23 MacBoyle, Errol (1919), Mines and mineral resources of Nevada County: California Mining Bureau. Report 16, 270 pp. (published as separate chapter): 63 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137 Trask, John Boardman (1853), Report on the geology of the Sierra Nevada, or California Range: California Legislature, 4th. sess., Ap. To Jour., S. Doc. 59, 30 pp.: 25
ⓘ Turtledove Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Placer County ⓘ American River	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
Colfax Mining District (Illinois Mining District) Applegate ⓘ Hepburn Property Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Colfax ⓘ Black Streak claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Burnt Flat ⓘ Lucky Boy occurrences (Lucky Boy occurrences 2)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
New England Mills ⓘ Bugg prospect (Meyer property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Major prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Damascus Mining District (Sunny South Mining District) Forks House ⓘ Section 24 occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dutch Flat Mining District (Towle Mining District) Alta ⓘ Hodge Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Uvarovite claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Baxter ⓘ Bear River Chrome Mine (Sullivan Chrome Mine; Sullivan-Hemphill-Nobel Mine [1917-1922]; Becky Mine [?]; Black Nugget Mine [WWII]; Central Pacific lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Casa Loma ⓘ ~~Beat claim~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Iron Spring claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Julian claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Strike claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Scott claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Snakehead claim (Jumbo claim; Snakebead [typo])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dutch Flat ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
Forest Hill Divide area Hughes Mill ⓘ Belcher occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Bessie B. claim (Lightening Ridge claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Bettie occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Blue Bell and Bee Bee claims (Blue Bell & Bee Bee claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Bobo occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Boiler Pit Mine (Victory Chrome Company deposit; Sugar Pine Chrome Mines)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Buzzard and Blue Jay claims (Buzzard & Blue Jay)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Capps pit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chrome lode	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chucho claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Comeback occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Daisy Bell claim (Daisy Belle claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dart and Braden Capco leases (Horseshoe claim; Port Wine claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Doodle Bug claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dunn's Capco Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dusty Queen occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ East Side occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ East Vulcan occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eastside claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Esther and Phyllis Mine (Esther & Phyllis)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Finning property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Green's Capco Leases Mine (Greens Capco)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hewes and Jones claims (W. I. Hewes & O. H. Jones; Snow claim; Pitt claim; New Hope claim; Hazel claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ High Grade pit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jennie occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Kidder pit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Last Chance occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lazy B occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lightening Streak claims (Black Cat claim; Lightening Ridge claim; Lightening Streak Nos. 1 & 2 claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lincoln occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little V occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Long Pit & Yellow Pit deposits (Long pit; Yellow pit deposits)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Hunter occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Strike occurrence [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Maralls' Capco Leases Mine (Maralls Capco leases)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pugh's Capco lease	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Randall Claims Nos. 1 & 2	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Red Pit occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rubberboot occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ School Morn occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Smith and McCollum's Capco Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Southern Pacific property (Gore; Garrison; G.H.; Muller and Mathews lease; Fitgerald and Russel lease; Lookout; Bell occurrence; King occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Storm Wrath occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sunny Ridge Fraction claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sunset Mine (Sun Set Chrome Mine; Sugar Pine Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tout Va Bien occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Trouble occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Turner and Geisendorfer Chrome and Concentration Company Mine (Turner and Geisendorfer Chrome and Conc. Co.)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Twin Shafts Mine (Victory Chrome Company)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospects [7] (Miscellaneous prospects; Victory Chrome Company prospects)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Vivian occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Vulcan Consolidated occurrence (Vulcan Cons. Chromite)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ W. I. Hewes & O. H. Jones Mine (W I Hewes & O H Jones; Hewes and Jones claims; Pitt claim; Hazel claim; Snow claim; New Hope claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Weiler's Capco lease	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Wild Canyon claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sugar Pine Reservoir ⓘ Anderson Hill Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Crittenden's Capco Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Forest Hill Divide Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Happy Family & Harrietta occurrences	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mastel's Capco Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Section 19 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Smith and McCullom prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sugar Lump occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr prospects [6]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Forest Hill Mining District Bath ⓘ Duffey Lease Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lehigh Canyon Patent property (Poco Tiempo Quartz Mine; Buttercup Chrome occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Poco Tiempo Quartz Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Marigold Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Spanish Mines Consolidated Mine (Spanish Mines Cons.; Garrison claim; Spanish claim; Esmeralda claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Washout claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Foresthill ⓘ Black Rock Chrome deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chrome Divide Mine (Mystery Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Greek claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Strike Mine (Lucky Strike occurrence [1])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Todd Valley ⓘ Buckhorn occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Diana occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dodds Ranch prospect (Dodds Ranch deposit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Fiddler's Green deposit (Farmer property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gas Canyon claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Green deposit (Americus deposit; Farmer property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hotaling ⓘ Black Arrow Ranch deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Parker Ranch Chromite deposit (McNear property; Meadowbrook Ranch; Auburn Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Iowa Hill Mining District Cottage Home Hill ⓘ Iowa Hill Chrome Mine (Williamson and Beck property [1918])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Last Chance Mining District Deadwood ⓘ Bear Wallow Mine (Bear Wallow prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Michigan Bluff Mining District (Michigan Bluff Mining deposit) Michigan Bluff ⓘ Schermeir prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sage Hill ⓘ ~~Bunker Mine (Bunker Mines; Blue Bird Mine [1880's]; Bay Tree prospect; Sunnyside occurrence)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Coal pit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Clinton Burro prospects (Chromite)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cultus Quartz lode	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mountain View group (Manzanita Chrome Mine [1918]; Victory Chrome Company)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Ophir Mining District (Auburn Mining District; Duncan Hill Mining District) ⓘ Newcastle	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23
Snakehead Point ⓘ Dunbar lease	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Morgan Extension occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ North Fork Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [8]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 136, 141, 194. Melville, William Harlow & Waldemar Lindgren (1890), Contributions to the mineralogy of the Pacific coast: USGS Bulletin 61, 40pp.: 27 Lindgren, Waldemar (1888), Contributions to the mineralogy of the Pacific Coast: California Academy of Sciences Proceedings, 2nd. series: 1: 5
ⓘ West Chrome Mine (Knob Hill prospect; West prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sugarloaf ⓘ Oak Patch claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Plumas County Almanor Mining District Canyondam ⓘ Poodle Dog claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rattlesnake Hill ⓘ Wolf Creek claim (Gold Stripes Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Spillover Placer and Quartz claims (Spillover Placer and Quartz claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Edmanton Mining District (Meadow Valley Mining District) Red Hill Red Hill & Skyline claims ⓘ Skyline Nos. 1; 2 claims (Rodhill claims [?]; Red Hill claims [?])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Spanish Ranch ⓘ Fuller claims (Hudson claim; Snow White Nos. 1-3 claims; Hillside claim; Florence claim)	Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 292.
Virgilia ⓘ Jack Forth claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Shennandoah claims (Shennandoah claim No. 1; Shennandoah claim No. 2)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 291
French Bar ⓘ Blue Jay Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Middle Fork of Feather River area Crescent Hill ⓘ Benner-Barrington group (Benner and Barrington group; Pine Cone claim; Oakie claim; Lucky Three claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 297, 298
ⓘ Diamond claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ White Fir claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Clover Leaf claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Fido claim (Union Chrome Company deposit [World War 1])	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Horseshoe Nos. 1 & 2 claims (King Snake claim; Greenledge claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Last Chance group (Meadow claim; Last Chance Nos. 1 & 2 claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Maurezzio group (Deerhorn claim; Deerhorn Extension claim; Commander Extension claim; Bottle Springs claim; Bottlespring claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ McCarty Mine (Jitney Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Little Volcano ⓘ Chicago claims Nos. 1 & 2	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Rynearson, Garn Arthur (1953), Geological investigations of chromite in California: Chromite deposits in the northern Sierra Nevada, California. California Division of Mines and Geology Bulletin 134, part 3 chapter 5: 299
Rock Creek Mining District Claremont ⓘ Cattle Spring claims Nos. 1 & 2 (Sundown Mining Company 1943)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cedar Flat claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cough group (Cough Group Nos. 1-3 claims; Spice; Pepper claim [No. 3 claim]; Salt Extension claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Salt claim (Spot claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eddelbuttel occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ General MacArthur occurrence (General Wainwright occurrence; General MacArthur; General Wainwright occurrences)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pine Flat Nos. 1-3 claims (Bald Mountain No. 1-2 claims 1937)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Quincy ⓘ Section 36 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Riverside County Riverside ⓘ New City Quarry (Victoria Avenue quarry)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
Sacramento County Folsom Mining District Folsom ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137
Sacramento ⓘ Sacramento River bars	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559.
San Benito County Alta Peak ⓘ ~~McCray deposit~~	USGS MRDS database (2005).
ⓘ Tirado Chrome Mine	Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 80.
ⓘ Valdez Brothers Chrome Mine (Valdez Bros. Chrome)	USGS MRDS database (2005). Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 80.
Cherry Peak ⓘ Ingalls deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Goat Mountain ⓘ ~~Alpine Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ S. L. Mead Chromite occurrence	USGS MRDS database (2005).
Hollister ⓘ Unspecified Cr occurrence [5]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 391. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 396
ⓘ Unspecified Cr placer occurrence [6]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 166
Idria (New Idria) ⓘ Rozzum Ridge Cr occurrence	Gail E. Dunning (gedunning@juno.com)
ⓘ Unspecified Cr occurrence [2]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 136, 195. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 183 Brush, G.J. (1866), New mineral localities ouvarovite: American Journal of Science, 2nd. series: 42: 268
Idria Peak ⓘ ~~Buena Vista prospect (Buena Vista deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ New Idria Mining District	American Mineralogist 1965: 50: 1893-1913.
Picacho Peak ⓘ Bobcat A and Alta Anchor claims (Bobcat and Anchor claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Clear Creek area Hernandez ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Root, L.L. (1926) Twenty-second report of the State Mineralogist. California Mining Bureau Report 22, 610 pp.: 228
ⓘ ~~Harrison deposit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Hines deposit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ San Domingo Palito deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Trinity deposit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Victor claim (Victor Mine)	Joseph F. Cooper Jr., Gail E. Dunning, Ted A.Hadley (2003) Minerology of the Victor Claim, Clear Creek Area, New Idria District, San Benito County, California.
Santa Rita Peak ⓘ ~~Santa Rita deposit~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
San Bernardino County Ivanpah Mining District Ivanpah Valley ⓘ Cima Dome	6th orogenic lherzolite conference 2014 Morocco
Superior Valley ⓘ Superior Valley 014 meteorite	Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
San Francisco County San Francisco ⓘ Ocean Beach	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137
ⓘ San Luis Obispo County
Los Osos ⓘ Welch Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ San Luis Obispo	Harder, Edmund Cecil (1910), Some chromite deposits in western and central California: USGS Bulletin 430: 167. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 270 Crawford, James John (1894), Twelfth report of the State Mineralogist: California Mining Bureau. Report 12: 37 Irelan, William, Jr. (1888b), Eighth annual report of the State Mineralogist: California Mining Bureau. Report 8, 946 pp.: 531 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137
Santa Lucia Mts (Santa Lucia Range) Cambria-Oceanic Mining District Cambria ⓘ Rogers Ranch occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cayucos ⓘ Zerfing Ranch deposit (Old Creek deposit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cerro Alto ⓘ Captian deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chromic Acid No. 1 claim (High Grade claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chromic Acid No. 2 claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Colonel deposit	USGS MRDS database (2005). Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 81 Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 143
ⓘ Eagle claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eucalyptus No. 2 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 82 Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 142
ⓘ Eureka claim (Leslie Elberg claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Leitner claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 61, 83
ⓘ Moonbeam No. 1 deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mountain View deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Norcross Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. USGS MRDS database (2005).
ⓘ Starlight Cr occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sunrise Nos. 1 and 2 deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Sweetwater Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sweetwater-Norcross group ⓘ Tip Top deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Vulture Cr occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Chorro ⓘ ~~Castro Mine (Castro Chrome Mine; Trinidad Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Colorado Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cuesta Pass ⓘ Low Ranch deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Pick and Shovel Mine (Pick A Shovel Mine; Safety Chrome Mine; Safety Mine)~~	USGS MRDS database (2005).
ⓘ El Divisadero Mine (Eldivenfaro Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ El Salto Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Estrella Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hilltop claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 82 Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 101-162
ⓘ Jasper claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Irelan, William, Jr. (1890b), Tenth annual report of the State Mineralogist: California Mining Bureau. Report 10, 983 pp.: 58
ⓘ La Primera Mine (El Primero Mine; Hardface Mine; La Primero Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Laflor claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Strike Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mescal Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ New London Mine (London Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Niggerhead Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pick and Shovel group ⓘ Chorro Mine (London Mine; Cypress prospect; Cypress Chrome Mine; Chorro Creek prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rawhide Cr occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Questa prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rodilla Cr occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Santa Clara deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Seeley group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Central claims (Central claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Crown Point claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Trinidad Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cienaga Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 55, 56, 81
San Simeon ⓘ Beach cliffs	Ron Layton Collection
ⓘ Pereira Group claims (Beauty Spot claim; Potrero claim; Red Rock claim; Ocean View claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Porta Brothers Ranch claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Walker, G.W. & A.B. Griggs (1953), Chromite deposits of the southern Coast Ranges of California: California Division of Mines Bulletin 134, part 2, chapter 2: 84
ⓘ Rancho Piedra Blanca occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rogers San Carpojaro Creek deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ San Carpojaro Creek deposits (Arroyo La Cruz; Owl No. 1 and Owl No. 2 deposits)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
San Mateo County San Mateo Upper Crystal Springs Reservoir (Crystal Springs Lake) ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Huguenin, Emile & W.O. Castello (1921), Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara, Santa Cruz Counties: California Mining Bureau. Report 17: 172 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137
Santa Barbara County Buellton ⓘ American Chrome deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Guadalupe Point Sal ⓘ Point Sal placer	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Unnamed hills ⓘ Unnamed Cr occurrence [2]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Huguenin, Emile (1919), Santa Barbara, Ventura Counties: California Division Mines Report 15: 735
San Rafael Mountains ⓘ ~~Bull Run prospect (Bull Run deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cachuma Mining District Cachuma Village ⓘ ~~Bacon Mine (Bacon deposit; O'Donnell and Burns Mining Company; O'Donnell and Byrne Mine; O.B. Mine; O and B Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chicken Spring claim (Chicken Spring Extension; Chicken Spring Number One)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Fairview prospect (Fairview deposit; Los Olivos; Acachuma; Cachuma Chrome Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Figueroa Mountain ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Tucker, W. Burling (1921), Los Angeles field division: California Mining Bureau. Report 17: 387
ⓘ Happy Canyon	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 82.
ⓘ Mesa claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Montinero prospect (Montinero deposit; La Laguna Ranch)~~	USGS MRDS database (2005).
ⓘ Red Bluff prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Roberts claims (Fir Chrome claim; Pine Chrome claim; Lookout Chrome claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Scrub Oak claim (Scrub Oak deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Zaca Lake prospect (Zaca Lake deposit)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Santa Clara County Black Wonder Mining District Red Mountain ⓘ Ferraro prospect (Winship properties)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Coyote Mining District Coyote ⓘ Bay Cities Water Company property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ O'Connell Mine (Greenwalls property; O'Connell Ranch Mine; O'Connell Number 1; Greenwalt)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ramelli prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Yates lease	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lions Peak ⓘ Laurel Lake Ranch deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
New Almaden Mining District New Almaden ⓘ Kilday Ranch deposits	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
San Jose Edenvale ⓘ Smith prospect (Smith property)	Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Davis, Fenelon Francis & C.W. Jennings (1954), Mines and mineral resources of Santa Clara County, California: California Journal of Mines and Geology: 50(2): 337-339 Van Nostrand Reinholt Press: 205.
Twin Peaks ⓘ Bonetti Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Shasta County Klamath Mountains Castle Crag ⓘ Lucky Strike Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Gibson ⓘ Boulder Creek Mine (Schlosser Mine)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Mining and Scientific Press (1916), The mining summary: Mining and Scientific Press: 113: 66
Harrison Gulch Mining District Dead Horse Ridge ⓘ Cadillac prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Rattlesnake Hill ⓘ Cantonwine prospect (Hilt lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~County Line claim (Wildcat Creek claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Forest Queen Mine (Union Forest Queen Mine; Bull Dog Mine; North Star No. 1 Mine; Rattlesnake Mine; Black Bird Mine; Grey Eagle; Gray Eagle claim; Mammoth claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hoy property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Round Bottom bend ⓘ Round Bottom Mine (Beegum Chrome Mine)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. O’Brien, J.C. (1943), Current notes on activity in the strategic minerals, Redding field district: California Division Mines Report 39: 81
Sims Station ⓘ Davis group (Ida Chrome group)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
East of Sims Station ⓘ Unnamed Cr occurrence [10]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Aubury, Lewis E. (1906), The structural and industrial materials of California: California Mining Bureau. Bulletin 38: 270 McGregor, A. (1890), Shasta County: California Mining Bureau. Report 10: 638
ⓘ Lone Pine property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Miles and Westover property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Shotgun Creek Mine (Gill Mine; Primm and Dougherty group; Noble Electric Steel Company property)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Creek Mine	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 281.
Sierra County Alleghany Mining District (Forest Mining District) Forest ⓘ Doriss Mine (Dorriss; Chrome F N; Chrome P N)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Evans prospect (Oak)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Mack House ⓘ Croesus occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Flynn and Woods prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Macchaus Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ McCormick prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Old Mountain House ⓘ Finan Mine (F and F group; Fainine; Finane Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Polar occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Brandy City Mining District Brandy City ⓘ Brandy City Mine (Luce and Company Mine; D. E. Luce & Company Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Downieville Mining District Downieville ⓘ Casserly prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Oxford Mine (Oxford Mine and mill; Oxford lease and mill; Becky; Case and Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 claim; Milton claim)~~	USGS MRDS database (2005).
Red Ant ⓘ Fraction claim (Golconda Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Indian Hill Mining District Indian Hill ⓘ Roupe property (Big Chance; Camptonville property; Big Chrome)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Poker Flat Mining District (Table Rock Mining District) Deadwood ⓘ Poker Flats prospects	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sardine Peak ⓘ North Star Mine (Red Mountain)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Suzy Bell Mine (Lucky Strike Mine; Dickey and Driesbach Mine; Brendt No. 1 Claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sierra City Mining District Sierra City ⓘ Milton claim (Redmayne and McGonigal prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Siskiyou County Dunsmuir ⓘ Coggins Mine	Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 153-156, Pl. 21. U.S. Bureau of Mines Report of Investigation 4587 (1949), Investigation of Coggins Chromite Mine, 9 pp. O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division of Mines (Report 43): 43(4): 413-468 War Minerals Report 44 (1943), Coggins Chromite Mine, 8 pp.
ⓘ Hearst property	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Little Castle Creek Mine (Castle Crag Mine; Brown Mine)~~	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Diller, J.S. (1919), Chromite: Mineral Resources U.S., 1916, part I, metals: 28 Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 183-188 Brown, G.C. (1916b), Shasta, Siskiyou, Trinity Counties: California Mining Bureau. Report 14: 755
Klamath Mountains Bally Mountain ⓘ Moffett Creek Northern claims (White; Allison)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 111, Pl. 12. Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 126-128
ⓘ Peg Leg Mine (Lambert claim; White and Brown Mine; Moffett Creek group; Chromite King Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ S & W Mine (La Tourell Mine; Lutrell Mine; Moffett Creek Northern Claims; Littrell Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 77-127. Allen, John E. (1941), Geologic investigation of the chromite deposits of California: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 126-128, 154
ⓘ Simas Ranch occurrence [1]	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104.
ⓘ Simas Ranch occurrence [2] [Southern]	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 10_.
ⓘ Unnamed Cr mine [11]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 96, 100
ⓘ V. Lindell Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 102, Pl. 12.
Bonnet Rock ⓘ Sunset Chrome claim	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104, Pl. 12.
ⓘ Unnamed Cr occurrence [25]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 93
Bullion Mountain ⓘ Grizzly Mine (1)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101.
Calf Lake ⓘ Calf Lakes occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 113-114.
Callahan Mining District (Scott River Mining District) ⓘ Callahan	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 391.
ⓘ Callahan Au-PGE placers	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Siskiyou Syndicate Mine (Plummer Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104.
Camp Eden ⓘ Martin Mine (Martin-McKeen Mine; McKeen Mine; Martin McKean Mine; Martin McKeer Mine)	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 136, 196. Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23
ⓘ R. F. Taylor Mine (Silvia Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104.
ⓘ W. Taylor Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104. Diller, J.S. (1921) Chromite in the Klamath Mountains, California and Oregon. Bulletin Vol. 725 (725a) US Geological Survey doi:10.3133/b725a
Schneider Hill ⓘ Grouse Creek Mine	Logan, C.A. (1918), Chromium, in: Bradley, W.W. et al, Manganese and Chromium in California, California State Mining Bureau Bulletin 76: 197-198.
ⓘ Low Grade Chromite group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Masterson Ranch occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 77-127.
Sugar Hill ⓘ Bingham W Mine (Wilcat; Bingham; The Chrome)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99. Diller, J.S. (1921) Chromite in the Klamath Mountains, California and Oregon. Bulletin Vol. 725 (725a) US Geological Survey doi:10.3133/b725a Logan, C.A. (1918), Chromium, in: Bradley, W.W. et al, Manganese and Chromium in California, California State Mining Bureau Bulletin 76: 199-200
ⓘ Wurst prospect	Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76, 248 pp.: 201.
Cecilville ⓘ Black Crow and Black Hawk Mine (Eldridge Mine)	O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 420.
ⓘ Blue Doe Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99.
China Mountain ⓘ Eddy Creek and Parks Creek Mine (Eddy Creek and Parka Creek Mine [?])	U.S. Bureau of Mines Minerals Yearbook for 1955, volume 3.
Cook and Green Butte ⓘ Emma Bell Mine (Chrome Mountain Mine; Stanton property; Blue Eagle and Black Eagle claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
Copper Butte ⓘ ~~Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Deadman Point ⓘ Herbert Cook Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 121.
ⓘ Unnamed Cr mine [16]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103, 121, Pl. 12
Denny Point ⓘ Browns Ranch Mine	O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 420.
ⓘ Masterson and McBride Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103, Pl. 12. Diller, J.S. (1921) Chromite in the Klamath Mountains, California and Oregon. Bulletin Vol. 725 (725a) US Geological Survey doi:10.3133/b725a
Dillon Creek Mining District Little Medicine Mountain ⓘ Runnalds occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103.
El Capitan ⓘ ~~Cyclone Gap Mine (Mammoth Mine)~~	Econ Geol (1986) 81:1261-1271
Gazelle Mountain ⓘ Unnamed Cr mine [23]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Grouse Point ⓘ Dry Gulch Mine (Lake Mine)	California Journal of Mines and Geology (1943) (Report 39): 39(3): 325-328.
Hawkinsville ⓘ Lang property	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 102.
Huckleberry Mountain ⓘ Elk Creek claim (Buckhorn; Skin Shin)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 119.
Kangaroo Mountain ⓘ Kangaroo Mountain Mine (Kubli-Scott claim; Anniversary claim; McGuire)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
Klamath River Mining District Gottsville ⓘ Blanton occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99, Pl. 12.
ⓘ Matherson occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103, Pl. 12.
ⓘ Portuguese Gulch	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103.
Granite Point ⓘ Ladd Mine (Klamath Chrome Mine; Dolbear Mine; Chromite group)	Econ Geol (1986) 81:1261-1271
Klamath River ⓘ Black Cap Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99, 105, Pl. 12.
ⓘ Wandering Jew Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99, 105.
Seiad Valley [town] ⓘ Seiad Valley Mine (Seiad Creek Mine)	Econ Geol (1986) 81:1261-1271
Seiad Valley Seiad Creek ⓘ Unnamed Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Johnston, William Drumm (1936), Nodular, orbicular, and banded chromite in northern California: Economic Geology: 31: 417-427
Mount Eddy ⓘ Unnamed Cr mine [4]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 90
Mount Emily ⓘ Unnamed Cr occurrence [3]	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 77-127.
Mountain House ⓘ Bagley Mine (Big Boy; Lucky Strike claims; Josephine; Genesis)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 77-127.
ⓘ Black Bear Mine (2)	USGS MRDS database (2005). U.S. Bureau of Mines Mineral Yearbooks (1951-1954)
ⓘ Coustable and Foster Mine	O’Brien, J.C. (1947), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 43): 43(4): 420.
ⓘ Dozier Mine (Dorothy Mine; Genesio Mine; Gould Mine; Big Boy Mine; Mountain House Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101, 109, 110. Diller, J.S. (1921) Chromite in the Klamath Mountains, California and Oregon. Bulletin Vol. 725 (725a) US Geological Survey doi:10.3133/b725a
ⓘ Earl M claim	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101, Pl. 12.
ⓘ Gazelle Mountain Chrome Mine (C. J. Masterson claim)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2 Diller, J.S. (1921) Chromite in the Klamath Mountains, California and Oregon. Bulletin Vol. 725 (725a) US Geological Survey doi:10.3133/b725a 77-127: 103.
ⓘ Gibbons Ranch Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101.
ⓘ Hayden and Hilt Mine (Genesis Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 109.
ⓘ Lame Duck Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 102, Pl. 12.
ⓘ Leviathan Mine (F. Chastain Mine)	McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 94.
ⓘ Scratch occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104, Pl. 12.
ⓘ Unnamed Cr mine [22]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Pacific Southwest Field Committee (PSFC) (1955), Natural Resources of NW California Geol. Mines Resources: figure 5, notes
ⓘ Unnamed Cr mine [27]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 92
ⓘ Unnamed Cr mine [28]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 92
ⓘ Unnamed Cr mine [29]	(2005) Mineral Resources Data System (MRDS), US Geological Survey. McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 92
Oro Fino Mining District Etna ⓘ Flederman claim	Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 196.
ⓘ Grant Mine (1)	McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 101. Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 197
ⓘ Meidell and Farrel Mine (Frank Horn deposit)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101.
Fort Jones Chaparral Hill ⓘ Serpa Ranch	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 113.
Rainbow Ridge ⓘ Coute Gulch occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 100.
Scott Bar ⓘ Unidentified Cr deposit [14]	Rynearson, Garn Arthur & Clay T. Smith (1940), Chromite deposits in the Seiad quadrangle, Siskiyou County, California: USGS Bulletin 922-J: 281-306, Pl. 40.
Scott Mountain area ⓘ Scott Mountain Cr occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 110.
Stewart Springs ⓘ Meadow View Mine (Scott Brothers Mine)	McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 91.
ⓘ Mountain Chrome Mine	Averill, Charles V. (1935), Mines and mineral resources of Siskiyou County: California Journal of Mines and Geology, California Division Mines (Report 31): 31(3): 266.
Tom Martin Peak ⓘ Black Spot occurrence	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99.
ⓘ Cerro Colorado Mine (Milns and Richman Mine; Liberty Mine)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 100, Pl. 12.
ⓘ Mary Lou claim (Chromite claim; Octopus claim)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 93. Wells, F.G., Smith, C.T., Rynearson, G.H., and Livermore, J.S. (1949), Chromite deposits near Seiad and McGuffy Creeks, Siskiyou County, California: USGS Bulletin 948-B: 55-62, 19 Rynearson, Garn Arthur & Clay T. Smith (1940), Chromite deposits in the Seiad quadrangle, Siskiyou County, California: USGS Bulletin 922-J: 281-306
ⓘ Piedras claim	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103.
ⓘ Rustless Mining Corp. property	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 101.
ⓘ Veta Chica occurrence (Jumbo; Mil Diables)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 104.
Yreka ⓘ Butcher Hill occurrence (Shebley)	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 99.
Greenhorn Reservoir ⓘ Rogers and Allen Mine	Wells, F.G. and Cater, F.W. (1950) Chromite deposits of Siskiyou County, California. California Division Mines Bulletin 134, part 1, chapter 2: 103.
Solano County Fairfield ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 137
Sonoma County Coast Range Camp Meeker ⓘ Gaver prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sonoma Chrome Inc. deposit (Meeker Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cazadero ⓘ Laton Mine (Layton Mine; Parmeter Ranch; Yellow Streak Mine; Burl prospect; Lone Bird prospect; Slats prospect; Serpentine prospect; Rattlesnake claim; Red Slide claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Guerneville Mining District Guerneville ⓘ Great Eastern and Mount Jackson Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Venado ⓘ Madeira claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Rough Crossing claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Welch prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Warm Springs Dam ⓘ Shanks and Copps claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
West Mayacmas Mining District Black Oaks ⓘ Red Hill claim (Juniper Ridge; Lock; Lock and Key; Culver Bear)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Castle Rock Springs area ⓘ Warner and Clark claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Cloverdale ⓘ Barnes Mine (Ardoin 1918)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
North Fork Little Sulphur Creek Culver-Baer Mine Culver-Baer Mine area ⓘ Unnamed Cr occurrence	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Boalich, E. S. (1921), Mendocino, Monterey, Mono, Napa, Solano, Stanislaus Counties: California Mining Bureau. Report 17: 248
Stanislaus County Black Wonder Mining District ⓘ Adobe Creek (Adobe Canyon)
Black Mountain ⓘ Black Bear Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wheeler, D. P., Jr. (1942) Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California. USGS Bulletin 936D Hawkes, H. E., Jr. Wells, F. G.
ⓘ Chrome Camp Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lucky Girl Mine (Stanislaus Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wheeler, D. P., Jr. (1942) Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California. USGS Bulletin 936D Hawkes, H. E., Jr. Wells, F. G.
Copper Mountain ⓘ Adobe Canyon group deposits (McGuire et al. deposits; McGuire Holbrook and Springer Lea; Southeast; Mountain View Mine; Mountain View claim; Gray Fox claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wheeler, D. P., Jr. (1942) Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California. USGS Bulletin 936D Hawkes, H. E., Jr. Wells, F. G.
ⓘ ~~Number Five group (Number 5 group; No. 5 Mine; Mineral Products Company property)~~	USGS MRDS database (2005).
ⓘ Unnamed Cr-Mn occurrences (1)	Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Hawkes, Herbert Edwin, Jr. & Dooley P. Wheeler, Jr. (1941), Chromite deposits of the Del Puerto area, California […(abstract): Geological Society of America Bulletin: 52: 1950] Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 204
Red Mountain ⓘ Black Bart Mine group	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wheeler, D. P., Jr. (1942) Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California. USGS Bulletin 936D Hawkes, H. E., Jr. Wells, F. G.
ⓘ Hampton Mine (Cummings lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Platner prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE [Pd-Pt-Ir-Rh-Ru] prospect (1)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Camp Jones ⓘ Unnamed Cr occurrence (1)	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 143. Engineering and Mining Journal (Engineering & Mining Journal) (1918), Mining news: 106: 807
Tehama County Coastal Range Brush Mountain ⓘ Kleinsorge group (Climax Mine; Black Beauty Mine; Trilby Mine; Milton Mine; Angora Mine + 2 unnamed mines)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Franklin Point ⓘ Big Bear occurrence (Big Bear Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Ehorn group (Ore Basin property; Valley View property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ State Lease occurrence (State School)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tomhead Mountain ⓘ Toms Head Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Klamath Mountains Little Red Mountain ⓘ Bear Cat occurrence (J. Charney and P. Magee property)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Bumble Bee occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Round Bottom occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Utah Chrome Company Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Western Chrome Mine	Econ Geol (1986) 81:1261-1271
ⓘ Zachary group (Beegum Nos. 3; 4; 5; 6; 7; 8; Black Jack; Red Bird)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Litttle Red Mountain group (Southern Pacific lease; Seagrave Beegum Mine) ⓘ McArthur occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pole Corral Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
ⓘ Sunshine Mine (Pine Grove; Red Mountain No. 3)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Round Mountain ⓘ Bland occurrence (Packsaddle and Boomer)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Turner group (Peach; Buela A.; Twin Cedars claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tedoc Mountain ⓘ Tedoc group (Tedoe; Dead Pine and Mountain View claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Econ Geol (1986) 81:1261-1271
North Elder Creek group (Joyce Mine; Hill Mine; Noble Electric Steel Company Mine; SW Hill Mine; Elder Creek Mine) ⓘ Grau Mine (Gruu Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ West pit (Grau pit)	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 83.
ⓘ Mill Gulch Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Trinity County Coastal Range Norse Butte ⓘ Federal Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Averill, Charles V. (1941), Mineral resources of Trinity County: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 78
Red Mountain ⓘ Grubstake claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Red Mountain claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Klamath Mountains Carrville Mining District Carrville ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 196. Kunz, George F. (1905) Gems, Jewelers' Materials, and Ornamental Stones of California. Bulletin 37 (2nd ed.) California State Mining Bureau
Cedar Flat ⓘ Stanton Chrome Mine (Stanton Chrome Extension claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Coffee Mining District (Coffee Creek Mining District) Eagle Peak ⓘ Unnamed Au-Cr placer [1]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Covington Mill ⓘ Unnamed Cr occurrence [15]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Dubakella Mountain ⓘ Brown Bear occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Federal claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gray Fox occurrence (Roosevelt)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Harmon ⓘ Unnamed Cr occurrence [19]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hayfork Mining District Grassy Mountain ⓘ McKay and Abbott occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Schules Mine (Pallestreau claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hayfork ⓘ Phillpot occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hoosimbim Mountain ⓘ Schreckengost group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Peanut ⓘ Blondy occurrence (Surprise)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Compass occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Foster and Cuff Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lost Horse occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Major Chrome prospect (Lost Horse)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Maringer Mine (Lost Dog Mine; Tule Creek Chrome Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Pewee claim (Peewee prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hyampom ⓘ Eltapom occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Jeffry Pine claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Indian Valley Mining District Bald Peaks of Plummer ⓘ Little Ann and Mumsie A. Chrome Mines (Little Ann claim; Mumsie A. claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Friend Mountain ⓘ Happy Go Lucky occurrence (Oak Ridge occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Number One occurrence (Chromite No. 1 occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Yellow Pine Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Oak Ridge Vance group ⓘ Sangra La claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Minersville Mining District Estrellita ⓘ Bragdon occurrence (Bragdon Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mule Creek occurrence (Mule Creek Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Monument Peak ⓘ Black Bear occurrence (Dry Ridge)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dry Ridge occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pony Buck Peak ⓘ Arrow Point Chrome prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Salmon Mountains Trinity Alps ⓘ Unnamed Cr occurrence [2]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [4]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Scott Mountains Scott Mountain ⓘ Unnamed Cr occurrence [10]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Sherer Ridge ⓘ Unnamed Cr occurrence [17]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr occurrence [5]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tangle Blue Lake ⓘ Tangle Blue Divide occurrence (Shoestring; Hornet; Gold Run)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
South Fork Mining District Copper Hill ⓘ Blackie occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eureka occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hoelling claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Western Chrome Nos. 1; 3; 4	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Forest Glen ⓘ Black Jack Mine (Black Jack occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Empire claim (Twin Cedars claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Trinity Alps Mountains Seven Up Peak ⓘ Unnamed Cr occurrence [9]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Trinity Mountains Altoona Mining District Boulder Peak ⓘ Black Crane claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Black Crow No. 1 and Black Crow No. 2 claims ⓘ Black Crow No. 1 claim [?]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Brown Dog claim (2)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Charlene Sue Mine (Charlene Sue occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Costa claim (Tiger Lily; Shasta Lily)	Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 175.
ⓘ Costa Lily Mine (Tiger Lily)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 177.
Crow Creek group (Chapman-Kirby claims; McConnell-Kirby) ⓘ Crow Creek Mine (Munko; Mumbo Creek; Neely; Russell Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Section 14 claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mumbo Creek group (Russell group)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Picayune Lake group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Railroad Lease Mine (Section Two; Southern Pacific Railroad lease; Railroad lease; Railroad Mine; Joe Sturdivant; Keno Compagnie Francise; Section 11 Mine; Southern Pacific)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Summit Mine (Pink Crystal; Pink Crystals; Costa lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Twin Chrome Hill Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Ramshorn Summit ⓘ Green Stripe Chrome Mine (Albiez Mine; Parmenter; Crews; Green Stripe Chrome claims Nos. 1 and 2)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Integral Consolidated group (Integral property) ⓘ Integral Mine (Cinnabar Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Halls Gulch Mining District Wildcat Peak ⓘ Chrome claim (Chrome No. 2 claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Trinity Chrome Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Wildcat Chrome occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Whisky Bill Peak ⓘ Copper King occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Highland Lake occurrence	O’Brien, J.C. (1965) Mines and mineral resources of Trinity County, California. Caifornia Division of Mines and Geology County Report 4: 125 pp.: 57.
ⓘ Unnamed Cr occurrence [3]	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Upper Hayfork Creek area Red Mountain ⓘ Compton occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Evalina Occurrenco Mine (Evalina Mine; Dry Camp)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ I Wonder occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Wildwood ⓘ Boyer group (July Nos. 1 and 2 claims: September Morn claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Collins group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cedar Nos. 1; 2; 3 & 4 claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chrome Center Nos. 1; 2 & 3 claims (Eagles Nest Nos. 1; 2 & 3; Chrome King Nos. 1; 2 & 3 claims; Green Chrome claims)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Dry Cedar claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Junction Nos. 1 and 2 claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Low Gap claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sunny Slope claim (King Kohle claim; Triangle claim; Cedar Gap claim; Shamrock claim)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Old Bones Mine (Old Bones occurrence)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tulare County Dumtah ⓘ Gill Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lindsay Peak ⓘ Earl Smith Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gill Ranch Mine (Gill Mine; Gill Ranch Chromite deposits)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lindsay ⓘ Unspecified Cr occurrence [1]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 143. Tucker, W. Burling (1919), El Dorado, Lassen, Modoc, Tehama, and Tulare Counties: California Mining Bureau. Report 15: 907 Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 138
Porterville ⓘ Holston Mine (Vaughn Mine; Vaughn Ranch Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Cr-PGE occurrence [1] (prospect near Holston Chrome)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Ni-Cr-Asbestos occurrences [1]	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 143. Tucker, W. Burling (1919), El Dorado, Lassen, Modoc, Tehama, and Tulare Counties: California Mining Bureau. Report 15: 907 Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 213 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 138
Strathmore ⓘ James Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tonyville ⓘ Bowlin Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Scattlefield Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Waddell Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Tuolumne County Chinese Station ⓘ ~~Burns and Turzich Mine (Burns and Tarzich Mine)~~	USGS MRDS database (2005).
ⓘ ~~Eggling and Williams Mines (Mariano Ranch)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Perconi Ranch deposits (Perconi Ranch Mine; Cherry Creek Mine; Whittle property)~~	USGS MRDS database (2005).
ⓘ ~~Sims property (Sims Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hetch Hetchy Junction ⓘ ~~Don Pedro Mine (Booker lease; Rosasco Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Jamestown District Jamestown ⓘ Jamestown Mine (Jamestown group)	Leicht, Wayne C., Nelson, Genne Myers (1994) Native Gold from the Jamestown Mine, Tuolumne County, California. The Mineralogical Record, 25 (1) 7-14
ⓘ ~~Quigg Mine (Kahl Mine [1908])~~	USGS MRDS database (2005).
ⓘ ~~Rowe and Swerer Mine (Rowe and Swerer occurrence)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Sunday Mine (Sunday claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Stent ⓘ ~~Mackey Mine~~	USGS MRDS database (2005).
Moccasin Peak area Marsh Flats Chrome Associates properties ⓘ ~~Bluepoint claim (Blue Point claim; Blue Point Mine)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Buckhorn claim (Wildboar claim)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Forked Pine claim~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Mum and Alice June Mine (Alice June claim; Mum claim; Mum Extension claim; Alice June Extension claim; Bud's Mine)~~	USGS MRDS database (2005).
ⓘ ~~Williamson Rosenthal and Mertz Mine (Williamson Rosenthal and Mertz claims)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
New Melones Dam ⓘ ~~Stanislaus River Chrome Mine~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tuolumne River	George, D. R. (1951) Thorite in California, AM Min. 36:129-132.
Yosemite Junction Beckwith Ranch Mines ⓘ ~~Booker lease (Booker lease occurrence)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Fagan Lease Mine (Fagan Lease occurrence)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~McCormick Mine (McCormick property; Terry and Sell lease [WWI])~~	USGS MRDS database (2005).
Peoria Flat ⓘ ~~Blackbird Mine (Blackbird No. 1 & No. 2 prospects; Blackbird No. 2; Blackbird No. 1 & No. 2 claims)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Grassely claims (Grassely group; Grassley claims; Grassley group; Lopez lease [1918]; Lopes lease)~~	USGS MRDS database (2005).
ⓘ ~~Horseshoe Mine (Horseshoe claim; Pedro lease [1918])~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Phoenix Mine~~	USGS MRDS database (2005).
ⓘ ~~Richards Mine [2] (Annex Chrome Mine; Rough and Ready Mine [1918])~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Sullivan and Kahl lease~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Ziehlke claims group [1948] (Last Chance claim; Morning Glory claim; Murphy lease; Pereira property; C. M. Quigg lease on Pereira property [1918]; C and M Quigg lease) ⓘ ~~North End claim (North End Mine)~~	USGS MRDS database (2005).
ⓘ ~~Shafer lease occurrence (Pereira Mine [1918])~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~Spotted Fawn Mine (Spotted Fawn claim; U.S.A. Mine [1918])~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ ~~West End claim (CM Quigg lease)~~	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Yuba County Camptonville Mining District Camptonville ⓘ Ironrite claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Forbestown Mining District Woodleaf ⓘ Arbucco prospects (Sharrer prospects)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Woodleaf Canyon Mine (Woodville Canyon Mine)	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 143. Mining and Scientific Press (1916), The mining summary: Mining and Scientific Press: 112: 569
North Star ⓘ Magruder prospects	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Yuba River Cr occurrences	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 311.

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 10, 2024 00:26:07

Go to top of page