The Douglas Mine is a mine located in Alameda county, California at an elevation of 3,402 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: 3,402 Feet (1,037 Meters)
Commodity:
Lat, Long: 37.6094, -121.59390
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.
Douglas Mine MRDS details
Site Name
Primary: Douglas Mine
Secondary: Cedar Mountain Claim ?
Secondary: Menden Hall ?
Secondary: Newman Mine
Commodity
Tertiary: Chromium
Tertiary: Iron
Location
State: California
County: Alameda
District: Cedar Mountain District
Land Status
Land ownership: Private
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: Fee Ownership
Workings
Type: Surface
Ownership
Owner Name: Mr Taylor
Home Office: California
Info Year: 1974
Owner Name: Woodsworth, F.
Percent: 100.0
Home Office: P. O. Box 2165, Redwood City, Ca 94064
Info Year: 1976
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Year First Production: 1885
Discovery Year: 1882
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
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: Pyroxene
Unknown: Serpentine
Unknown: Uvarovite
Comments
Comment (Deposit): THIN DISCONTINUOUS SEAM OF ORE INPLACE NO RESERVE ESTIMATE POSSIBLE. LAST OPERATOR CLAIMED 55 PCT CR2O3 CR/FE 3.5 TO 1 WAS TYPICA LAST OPERATOR CLAIMED"GOOD RESERVES WERE LEFT INSUFFICIENT DATA FOR MATRIX CALCULATION ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-MASSIVE 2 09.90,CR2O3 49.33,FEO 09.35,TOTAL FE 12.87,AL203 06.22,MGO CR/FE 3.38.DISSEMINATED ORE=S102 03.30,CR2O3 54.81,FEO 13.74 FE 16.08,AL203 08.29,MGO 12.27,CR/FE 3.00.
References
Reference (Deposit): CDM AND G 17TH REPT OF STATE MINER.1921 P21
Reference (Deposit): CDM AND G BULL 134 PT2 CHAPT 2 1953 ALAMEDA CO P.52
Reference (Deposit): CAL STATE MIN BUR 8TH REPORT 1888PAGE 32
Reference (Deposit): USGS BULL 430 1909 CHROMITE IN CALIF PP173-174
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.
