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
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.
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.
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.
