Sunset Group

The Sunset Group is a manganese mine located in Plumas county, California at an elevation of 6,319 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: Sunset Group

State:  California

County:  Plumas

Elevation: 6,319 Feet (1,926 Meters)

Commodity: Manganese

Lat, Long: 40.1389, -121.05330

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 Sunset Group

Sunset Group MRDS details

Site Name

Primary: Sunset Group


Commodity

Primary: Manganese
Tertiary: Aluminum
Tertiary: Iron
Tertiary: Phosphorus-Phosphates
Tertiary: Silica


Location

State: California
County: Plumas


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

Type: Unknown


Workings

Not available


Ownership

Owner Name: Armin Speckert
Home Office: California
Info Year: 1974


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Unknown
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: Chert
Unknown: Hematite
Unknown: Limonite
Unknown: Pyrolusite
Unknown: Quartz
Unknown: Rhodonite
Unknown: Psilomelane


Comments

Comment (Deposit): MANGANESE OXIDES DERIVED FROM WEATHERING OF THE CHERT OCCUR ONLY IN THE UPPERMOST PORTIONS OF THE FORMATION, USUALLY 30 FEET FROM THE SURFACE. BELOW THAT, MANGANESE OCCURS AS RHODONITE AND BEMENTITE.

Comment (Geology): SEDIMENTS ALSO IRREGULAR BODIES OF JASPER


References

Reference (Deposit): CALIF DIV OF MINES BULL 125 1935 P 153

Reference (Deposit): ALSO IN SEC 3 SW 1/4 T26N R8E & SEC T27N R8E

Reference (Deposit): TRASK, PARKER D., 1950, GEOLOGIC DESCRIPTION OF THE MANGAN-

Reference (Deposit): ESE DEPOSITS OF CALIFORNIA: CAL. DIV. MINES & GEOL. BULL.

Reference (Deposit): 152

Reference (Deposit): TENGROVE, RUSSELL R., 1960, RECONNAISSANCE OF CAL. MANGANESE

Reference (Deposit): DEPOSITS: BUREAU OF MINES RI 5579


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