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Colorado Mine, Deadwood area, French Gulch District, Klamath Mts, Shasta Co., California, USA

Latitude: 40°43'37"N
Longitude: 122°40'45"W

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A former lode Au mine located in secs. 8 & 17, T33N, R7W, MDM, 4.6 km (2.8 miles) E of Deadwood and 4.6 km (2.8 miles) NW of French Gulch (coordinates estimated; section projected), on the divide between Boswell Gulch and the Right Fork French Creek. MRDS database stated accuracy for this location is 1,000 meters.

Mineralization is hosted in granite porphyry and slate. The ore body is tabular, strikes NE and dips 40N at 0.25 meters thick. The footwall is granitic porphyry and the hanging wall is slate. Local rocks include Carboniferous marine rocks, unit 4 (Eastern Klamath Mountains).

Workings include underground openings consisting of a 400 foot shaft with drift. The ore shoot is 160 feet.

No production recorded.

Mineral List

Gold

1 entry listed. 1 valid mineral.

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References

Brown, G. Chester (1916b), Shasta, Siskiyou, Trinity Counties: California Mining Bureau. (Report 14): 14(4): 782.

Lydon, Philip Andrew and O’Brien, J.C. (1974) Mines and mineral resources of Shasta County, California. California Division of Mines and Geology County Report 6, 154 pp.

USGS crib list (1981) (November 4, 1981).

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10034397 & 10237559.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060890599.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 29th Jun 2012 08:01:51