The Bunker Mine is a mine located in Placer county, California at an elevation of 3,428 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: 3,428 Feet (1,045 Meters)
Commodity:
Lat, Long: 39.0372, -120.75860
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.
Bunker Mine MRDS details
Site Name
Primary: Bunker Mine
Secondary: Blue Bird Mine
Commodity
Tertiary: Chromium
Tertiary: Iron
Location
State: California
County: Placer
District: Forest Hill Divide Area
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Type: Private Lease
Workings
Type: Surface
Ownership
Owner Name: Embree, L. G.
Home Office: California
Info Year: 1976
Years: 1942 - 1943
Owner Name: U.S. Forest Service - Tahoe National Forest
Percent: 100.0
Home Office: California
Info Year: 1976
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Year First Production: 1917
Discovery Year: 1880
Years of Production:
Organization:
Significant: N
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
Unknown: Chromite
Unknown: Olivine
Unknown: Serpentine
Unknown: Uvarovite
Unknown: Pyroxene
Comments
Comment (Deposit): AVERAGE GRADE SHIPPED 1942-43 WAS 40.64% CR2O3,12.23% FE WIT FE RATIO OF 2.27 MINE IDLE SINCE 1943. NO ESTIMATES OF RES N LITERATURE--NO ORE IN PLACE SEEN AT MINE INSUFFICIENT DATA FOR MATRIX CALCULATIONS. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-EAST WOR ASSIVE ORE=S102 1.46,CR2O3 49.33,FEO 10.52,TOTAL FE 14.47,AL 09,MGO 16.58,CR/FE 3.00.EAST WORKINGS MODULAR ORE=S102 2.30, 4.08,FEO 13.04,TOTAL FE 15.44,AL203 12.28,MGO 15.75,CR/FE 3. IVE ORE,WEST WORKINGS=S102 4.02,CR2O3 42.02,FEO 13.34,TOTAL 0,AL203 14.09,MGO 12.85,CR/FE 1.92.
References
Reference (Deposit): RYNEARSON,GA 1953. CAL DIV MINES BULL 134,PT 3,CH 5. PP 224-
Reference (Deposit): BRADLEY,WW ET AL 1918,MN&CR IN CAL.CAL ST MINING BUR BULL 76
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.
