The High Plateau Mine is a chromium mine located in Del Norte county, California at an elevation of 2,598 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: 2,598 Feet (792 Meters)
Commodity: Chromium
Lat, Long: 41.92806, -123.94917
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.
High Plateau Mine MRDS details
Site Name
Primary: High Plateau Mine
Secondary: Brown's Mine
Commodity
Primary: Chromium
Location
State: California
County: Del Norte
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
Not available
Workings
Not available
Ownership
Owner Name: Brown, Eugene R.
Home Office: Star Route, Highway 199, O'Brien, Ore., 97534; 503-596-2918
Production
Year: 1945
Time Period: 1937-1945
Material type: ORE
Description: Cp_Grade: ^50-55% Cr2o3
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1918
Year Last Production: 1958
Discovery Year: 1917
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENSE
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Partial Serpentinization Of Dunite
Rocks
Not available
Analytical Data
Analytical Data: CR TO FE RATIO OF 2.94-3.74 TO 1.
Analytical Data: 50-55% CR2O3
Materials
Ore: Chromite
Gangue: Uvarovite
Gangue: Magnetite
Comments
Comment (Deposit): THE DEPOSIT ORIGINALLY CONSISTED OF A SINGLE CONTINOUS TABULAR ORE BODY THAT HAS NOW BEEN BROKEN BY TWO LARGE FAULTS.
Comment (Workings): MINE DEVELOPED BY TWO ADITS WITH CROSSCUTS, DRIFTS AND RAISES.
Comment (Location): MINE LOCATED ON NORTH SIDE OF PERIDOTITE CANYON, ABOUT 250 FT. BELOW TOP OF RIDGE.
Comment (Reserve-Resource): STINSON, 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED
References
Reference (Deposit): STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED
Reference (Production): STINSON, 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED
Reference (Deposit): WELLS, F.G., CATER, F.W., JR., AND RYNEARSON, G.A., 1946, CHROMITE DEPOSITS OF DEL NORTE COUNTY, CA.: CDMG BULL 134, PART 1, CHAPT. 1, P. 32-35, 37.
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.
