Mine detail: North Keystone

Previously called ''

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Location

Lat / long: 37.98741, -120.65021

Resource(M)

Tertiary: Copper, Gold, Silver

Production

Operation type: Underground
Development status: Past Producer

Geology

References

MRDSM006029
MAS60090506
DEP10260270
Reference{Deposit:: REF 1 CAL. DIV. OF MINES, COPPER IN CALIF., BULL. 144, CALI}{Deposit:: OF NAT. RES., 1948. INCLUDES PLATES OF MINE MAPS, REF}{Deposit:: 427;EC MINERAL MAP NO 7,1957;CALIFCOUNTY REPT NO 2,P 24-7,13}{Deposit:: REF 2 LYMAN MOORE DATA FROM 1970 EVALUATION}{Deposit:: REF 3 CAL. DIV. OF MINES AND GEOLOGY, MINES AND MINERAL RES}{Deposit:: OF CALAVERAS COUNTY, CALIF., COUNTY REPORT NO.2, 19}{Deposit:: MULTIPLE PROPERTY STUDY - - MPF DATA FILED UNDER 0060430158}
ReporterLewis, J.D.