Mine detail: Keystone

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Location: Amador County, California, United States, North America
Lat / long: 38.41796, -120.82296
dep_id: 10028175
mrds_id: M005016
Commodity type: metallic
Major mineral: Gold
Trace mineral: Antimony, Arsenic
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Gold, Pyrite, Stibnite
Reporter: Gere, W., Tatkin, T.; Albers, J.
hrock_type: Slate,Greenstone
disc_yr: 1851
prod_yrs: 1851 TO 1919 ; 1933 TO 1942
References:
  • Deposit:: CARLSON, D.W. AND CLARK, W.B., 1954 , MINES AND MIN. RES. OF AMADOR COUNTY, CAL: CJMG VOL. 50 , P. 185
  • Deposit:: DOM BULL. 144, P. 215
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