The Spenceville is a copper mine located in Nevada county, California at an elevation of 440 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: 440 Feet (134 Meters)
Commodity: Copper
Lat, Long: 39.1322, -121.27060
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.
Spenceville MRDS details
Site Name
Primary: Spenceville
Commodity
Primary: Copper
Tertiary: Gold
Tertiary: Silver
Location
State: California
County: Nevada
Land Status
Not available
Holdings
Type: Patented
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Deposit): PRELIMINARY COMMENT. AFTER 2 YEARS OF PREPRODUCTION THE MINE OPERATE FOR 5 YEARS. THE ORE WILL BE HAULED TO THE BO (ID 060570440).ALL CAPITAL COSTS FOR THE MILL OPERATI ATTRIBUTED TO BOSS PROPERTY. PLANT AND EQUIPMENT USED THIS MINE WILL LATER BE USED TO MINE THE DAIRYFARM PR (ID 060610020). MINE COSTED FROM 50% PROB ORE RESERVE REC 120 BASE YEAR 1970 USED FOR MINE COSTING (1970 DOLLAR VA MINE CAPITAL COSTS TOTAL 1,851,300 ACQ 30,000 EXPLOR 143,600 DEVEL 628,800 EQUIP 463,400 PLANT 457,900 WORK.CAP 127,600 MINE OPERATING COSTS 14.900/MT REC 151 MILL CAPITAL COST ATTRIBUTED TO BOSS PROPERTY. BOXES .0001 OR .00001 NOTE THAT THIS MILL WAS NOT COSTED. REC 140 ORE HAULED BY TRUCK TO BOSS MILL
References
Reference (Deposit): REF 1 CALIF.DIV.MINES, COPPER IN CALIF.,BULL.144, CALIF.DEP
Reference (Deposit): RES.,1948. INCLUDES PLATES OF MINE MAPS AND REFERENCE
Reference (Deposit): REF 2 LYMAN MOORE DATA FROM 1970 EVALUATION
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.
