Mine detail: Calaveras - Columbus

Previously called 'Amador - Columbus'

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Location

Lat / long: 38.4138, -120.56823

Resource(M)

Primary: Gold
Secondary: Silver
Tertiary: Copper
Ore: Gold, Pyrrhotite
Gangue: Quartz

Production

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

Geology

Host type:Diorite
Associated type:Diorite

References

MRDSM006872
DEP10102802
Reference{Deposit:: CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P. 38 - 39 , 142 AND PL B}{Deposit:: LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 246 - 7 , 301}{Production:: CLARK ( 1962 )}
ReporterMateik, R.; Albers, John P.