The Defense Mine is a silver and lead mine located in Inyo county, California at an elevation of 3,999 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: 3,999 Feet (1,219 Meters)
Commodity: Silver, Lead
Lat, Long: 36.24444, -117.45972
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.
Defense Mine MRDS details
Site Name
Primary: Defense Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Gold
Secondary: Zinc
Tertiary: Copper
Location
State: California
County: Inyo
District: Modoc
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Faults
Alterations
Alteration Type: L
Alteration Text: Dolomitization
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Pennsylvanian
Analytical Data
Not available
Materials
Ore: Galena
Ore: Coronadite
Comments
Comment (Geology): GEOL.DESC: ORE IS IN LIMESTONE ALONG FLAT FAULTS WHICH NEARLY COINCIDE WITH BEDDING.
Comment (Production): 1942 - 1952 : ORE AVERAGED 21.3 % PB, 12.7 OZ. AG, 0.146 % CU, WITH SOME GOLD AND ZINC. ALL ORE RAN HIGH IN MANGANESE AND IRON.
Comment (Deposit): ORE BODIES ARE ENECHELON IN THE VERTICAL PLANE, SEPERATED BY NEAR VERTICAL FAULTS. ORE BODIES ARE ENCASED IN AN ENVELOPE OF JASPER, RICH IN IRON AND MANGANESE OXIDES.
Comment (Workings): 2 ADITS USED AS HAULAGE WAYS. INTERVENING GROUND IS DEVELOPED FROM WINZES AND RAISES. DIAMOND - DRILLING IN 1952 - 1953 DISCLOSED AN ORE BODY ON INTERMEDIATE LEVEL, 30 FT. BY 100 FT. BY SEVERAL HUNDRED FT.
Comment (Location): UTM ACC. ; INFO FROM LAND.ST :UNDETERMINED
References
Reference (Deposit): GOODWIN, J. C., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 ; DIV. OF MINES, P. 467 - 468
Reference (Deposit): NORMAN, L. A. AND STEWART, R. M., 1951 , MINES AND MINERAL RESOURCES OF INYO COUNTY; CALIF. JOUR. MINES AND GEOLOGY VOL. 47 , NO. 1 ; DIV. OF MINES, P. 68 - 69 .
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.
