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Colma group, Mammoth Butte, Backbone District, West Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA
Latitude: 40°45'6"N
Longitude: 122°28'27"W
Longitude: 122°28'27"W
Mineralization is a vein deposit hosted in rhyolite and porphyry. The ore body is tabular in form at 0.91 meters thick. Local rocks include Paleozoic metavolcanic rocks, unit 1 (Eastern Klamath Mountains).
Workings include underground openings with a total length of 914.4 meters.
The claims were developed through the No. 5 tunnel level of the Uncle Sam Mine. The trend of the tunnel is N40E. It intersects the Uncle Sam vein 1,200 feet from the portal. 350 feet beyond this vein, the quartz vein was cut.
No production recorded.
Mineral List
| Chalcopyrite | Pyrite |
2 entries listed. 2 valid minerals.
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References
Logan, Clarence August (1926), El Dorado, Shasta and Trinity Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 22): 22(2): 148.
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.: 105.
USGS crib list (1981) (November 4, 1981).
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10102965 & 10286788.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060890589.
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.: 105.
USGS crib list (1981) (November 4, 1981).
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10102965 & 10286788.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060890589.
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