California · Calaveras County
Past Producer

Keystone

Calaveras County, California, United States
Gold
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
Commodity typeM
Deposit
Deposit sizeS
Materials
Ore mineralsGold
GangueQuartz
Geology
Host rockMica Schist
Economic & production
Development statusPast Producer
Identification
Deposit ID10029048
MRDS IDM006386
RegionNA
Data scoreD
Coordinates38.12074, -120.49128
References
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. 161 AND PL