The Gopher Hill Mine is a gold and silver mine located in Calaveras county, California at an elevation of 801 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 801 Feet (244 Meters)
Commodity: Gold, Silver
Lat, Long: 37.95444, -120.74417
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Gopher Hill Mine MRDS details
Site Name
Primary: Gopher Hill Mine
Secondary: Gopher Ridge
Commodity
Primary: Gold
Primary: Silver
Secondary: Copper
Tertiary: Lead
Tertiary: Zinc
Location
State: California
County: Calaveras
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Shear Zones With A Nw Trend And Steeply Dipping
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ASSAY SAMPLES RANGE FROM $.85 TO $14. PER TON AU AND FROM 0.01 TO 39.0 OZ PER TON IN AG
Materials
Ore: Bismuth
Ore: Gold
Gangue: Quartz
Comments
Comment (Location): UTM ACC NE 1/4 SEC
Comment (Production): ACTIVE 1921 , 1934 - 1936
Comment (Deposit): VEIN, 1 1/2 FT THICK IN PYRITIZED GREENSTONE. 2/3 OF ROCK IS BASE ORE WITH TRACES OF ARSENIC AND BISMUTH. NEITHER CU OR ZINC ORE OBSERVED IN PLACE. HENCE LITTLE PROMISE FOR PRODUCTION OF THESE METALS.
Comment (Workings): DEVELOPED BY 84 FT SHAFT WITH LEVELS AT 40 AND 80 FT
Comment (Geology): TO SOUTH OF MINE THERE IS QTZ PORPHYRY INTRUSION, WHICH IS 5 - 700 FT IN DIAMETER, AND RESPONSIBLE FOR SHEAR ZONES NEAR MINE.
References
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 132 , 155 AND PL B & D
Reference (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
Reference (Deposit): JENKINS, O. P., 1948 , COPPER IN CALIF.; CALIF DIV. OF MINES BULL 144 PG 122, AND 220
Reference (Production): CLARK, ( 1962 ) LOGAN ( 1932 )
Reference (Deposit): GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIF.: CALIF. DIV. MINES. VOL. 53 , NOS. 3 & 4 , P 122 & 220 .
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
