Briggs Lease

The Briggs Lease is a chromium mine located in Calaveras county, California at an elevation of 1,001 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: Briggs Lease  

State:  California

County:  Calaveras

Elevation: 1,001 Feet (305 Meters)

Commodity: Chromium

Lat, Long: 38.2692, -120.81970

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 Briggs Lease

Briggs Lease MRDS details

Site Name

Primary: Briggs Lease
Secondary: Fields & Stoker Briggs Lease
Secondary: Field and Stoker Mine


Commodity

Primary: Chromium
Tertiary: Iron


Location

State: California
County: Calaveras
District: Pardee Area


Land Status

Land ownership: County
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: Located Claim


Workings

Not available


Ownership

Owner Name: Fields And Stoker
Home Office: California
Info Year: 1976
Years: 1917 -

Owner Name: Fields And Stoker-Located Claim During Ww1
Percent: 100.0
Home Office: California
Info Year: 1976
Years: 1917 -

Owner Name: Briggs, A. L.
Home Office: California
Info Year: 1976
Years: 1917 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Year First Production: 1917
Discovery Year: 1917
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: Serpentine
Unknown: Uvarovite
Unknown: Chromite


Comments

Comment (Deposit): THE DEPOSIT CONSISTED OF A FEW IRREGULAR NORTH-NORTHWESTER DING PODS AND LENSES OF MASSIVE- MEDIUM GRAINED CHROMITE WHI STEEPLY EASTWARD INSUFFICIENT DATA FOR MATRIX CALCULATIONS.


References

Reference (Deposit): CATER,F.W.,JR.,1948,CDM AND G BULL 134,PT.3,CHAP.2,P.51,PL.5

Reference (Deposit): FOLIO NUMBER 2,JACKSON,USGS

Reference (Deposit): CAL.COUNTY REPT NO.2,P.129 AND PL.D.


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"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.