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

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.

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

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.