Mine detail: Keystone Group

Previously called 'Darwin-Keystone'

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Location

Lat / long: 36.2608, -117.56534

Resource(M)

Primary: Copper
Secondary: Lead, Silver, Gold
Ore: Galena
Gangue: Calcite, Jasper, Limonite

Production

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

Geology

Host type:Limestone
Structure:Folds, Faults

References

MRDSM020642
DEP10033982
Reference{Deposit:: HALL, W. E. AND MACKEVETT, E. M., 1958 , ECONOMIC GEOLOGY OF THE DARWIN QUADRANGLE, INYO COUNTY, CALIFORNIA; DIV. OF MINES, SPECIAL REPORT 51 ; P. 31 - 32}{Production:: HALL & MACKEVETT, 1958 , P. 32 (SEE REF.)}
ReporterFraticelli, L. A. (Albers, J.)