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

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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

1 entry listed. 1 valid mineral.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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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