Mine detail: Gopher Hill Mine

Location:	Calaveras County, California, United States, North America
Lat / long:	37.95435, -120.74518
dep_id:	10028623
mrds_id:	M005707
Commodity type:	metallic
Major mineral:	Gold, Silver
Minor mineral:	Copper
Trace mineral:	Lead, Zinc
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Bismuth, Gold
gangue:	Quartz
work_type:	Underground
ore_ctrl:	Along Shear Zones And Elsewhere In Schistose Rks Much Finely Disseminated Pyrite Is Present These Pyritized Zones Generally Carry Some Au And Ag
Reporter:	Mateik, R.; Albers, J.
hrock_type:	Greenstone
Structure:	Shear Zones With A Nw Trend And Steeply Dipping
References:	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 132 , 155 AND PL B & D Deposit:: GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIF.: CALIF. DIV. MINES. VOL. 53 , NOS. 3 & 4 , P 122 & 220 . 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 262 Deposit:: JENKINS, O. P., 1948 , COPPER IN CALIF.; CALIF DIV. OF MINES BULL 144 PG 122, AND 220 Production:: CLARK, ( 1962 ) LOGAN ( 1932 )