The Defender is a gold mine located in Amador county, California.
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
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.
Defender MRDS details
Site Name
Primary: Defender
Commodity
Primary: Gold
Tertiary: Zinc
Tertiary: Copper
Tertiary: Iron
Tertiary: Lead
Location
State: California
County: Amador
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
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Chalcopyrite
Ore: Gold
Ore: Galena
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Commodity): FREE GOLD AND PYRITE ASSOCIATED WITH MINOR GALENA, CHALCOPYRITE, SPHALERITE ALL IN QUARTZ VEIN.
Comment (Geology): GEOL.DESC: QUARTZ VEIN CUT BY A SERIES OF DIORITE DIKES AVERAGE 4 INCHES TO 2 FT THICK, ONE DIKE AT 200 FT LEVEL 22 FT. THICK WITH NO ORE SOUTH OF THIS DIKE.
Comment (Location): SE 1/4 SW 1/4 , COORDINATES EST.
Comment (Production): LAST ORE PRODUCED ASSAYED $7 - $9/TON.
Comment (Workings): INCLINED SHAFT 480 FT., AT 200 FT. LEVEL DRIFTS 300 FT NORTH, 150 FT SOUTH; MOST ORE PRODUCED BETWEEN SURFACE AND 200 FT LEVEL.
References
Reference (Deposit): CARLSON, D.W. AND CLARK, W.B., 1954 , MINES AND MIN RES. OF AMADOR COUNTY, CAL.: CJMG VOL 50 , P. 178
Reference (Deposit): TUCKER, W.B., 1914 , AMADOR COUNTY: CMB REPT. 14 , P. 27 .
Reference (Production): CARLSON, D.W. AND CLARK W.B., 1954
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.
