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Black Spring Mine, Mariposa, Bagby-Mariposa-Mount Bullion-Whitlock District, Mother Lode Belt, Mariposa Co., California, USA

Latitude: 37°29'5"N
Longitude: 119°59'22"W

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A former lode Au mine located in sec. 18, T5S, R18E, MDM (UTM estimated; sec. lines projected), 2.1 km (7,000 feet) W of Mariposa along Carson Creek. Produced during the period 1905 to 1909. MRDS database stated accuracy for this location is 1,000 meters. A Los Mariposas grant mine.

Mineralization is a vein deposit. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).

Workings include unspecified surface and underground openings.

Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).

Production information: Active in 1905, 1906 and 1909. During this period 56.82 tons of ore yielded $620.90 or an average of $11.09 per ton at prevailing price of gold (period values).

Mineral List

Gold

Quartz

2 entries listed. 2 valid minerals.

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References

, Mines and mineral deposits of Mariposa County, California: California Journal of Mines and Geology: 53(1&2): 24.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10031170 & 10188407.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060430517.

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Current server date and time: 29th Apr 2013 22:19:05