Mine detail: Twenty Grand

Previously called ''

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Location

Lat / long: 37.51272, -118.32038

Resource(M)

Primary: Gold, Silver
Secondary: Lead, Copper
Gangue: Quartz

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer

Geology

Host type:Quartzite
Alteration processes:Oxidation

References

MRDSC010640
DEP10007218
Reference{Deposit:: GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53 , NOS. 3 & 4 , P. 569 .}{Deposit:: TUCKER, W. B., AND SAMPSON, R. J., 1940 , MINERAL RESOURCES OF MONO COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 36 , NO. 2 , P. 139 - 140 , PL. 1 .}{Production:: GOODWIN ( 1957 )}
ReporterNelson, Scott C. (Albers, John, P.), Mosier, Dan