Oak Ridge Occurrence

The Oak Ridge Occurrence is a chromium mine located in Trinity county, California at an elevation of 1,299 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

Name: Oak Ridge Occurrence  

State:  California

County:  Trinity

Elevation: 1,299 Feet (396 Meters)

Commodity: Chromium

Lat, Long: 40.56694, -123.37417

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.


Satelite image of the Oak Ridge Occurrence

Oak Ridge Occurrence MRDS details

Site Name

Primary: Oak Ridge Occurrence


Commodity

Primary: Chromium


Location

State: California
County: Trinity
District: Indian Valley 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

Not available


Workings

Not available


Ownership

Owner Name: Lough, E. A.
Home Office: Hayfork, Ca

Owner Name: Nagaar, Jim
Home Office: Hayfork, Ca


Production

Year: 1953
Material type: ORE
Description: Ap_Grade: ^49% Cr2o3


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1955
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

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Serpentinite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Analytical Data: CR TO FE RATIO 2.5 TO 1
Analytical Data: 49% CR2O3


Materials

Ore: Chromite


Comments

Comment (Commodity): ASSAY OF 1953 PRODUCTION

Comment (Geology): THE DEPOSIT OCCURS IN ONE OF SEVERAL DIKE LIKE PERIDOTITE BODIES THAT ARE NW TRENDING ACROSS CENTRAL TO SW TRINITY CO.


References

Reference (Production): CDMG COUNTY REPORT NO. 4, P. 58

Reference (Deposit): O'BRIEN, J.C., 1965, CDMG COUNTY REPORT NO. 4, P. 58


California Gold

Where to Find Gold in California

"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 at Where to Find Gold in California.