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

MRDS	M020642
DEP	10033982
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.)}
Reporter	Fraticelli, L. A. (Albers, J.)