The Twin Sisters is a gold mine located in Nevada county, California at an elevation of 3,100 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.
Elevation: 3,100 Feet (945 Meters)
Primary Mineral: Gold
Lat, Long: 39.43194, -120.80417
Map: View on Google Maps
Twin Sisters MRDS details
Primary: Twin Sisters
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 indicate a claim status and does not necessarily indicate an area is open to prospecting.
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Deposit Size: S
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Comment (Deposit): VEINS, 18 - 50 IN. THICK
Comment (Workings): 2 ADITS, INCLINE
Comment (Geology): SO. PAC. CO. DESCRIBES WALL ROCKS AMPHIBOLITE SCHIST & GABBRO
Comment (Deposit): GROUP OF 3 CLAIMS ; INFO.SRC : 1 PUB LIT
Reference (Deposit): LOGAN, C. A., 1924 , SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 20 , NO. 4 , P. 11 .
Reference (Deposit): CRAWFORD, J. J., 1896 , THIRTEENTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 13 , P. 265 .
Reference (Deposit): SOUTHERN PACIFIC COMPANY, 1964 , MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2 , P. 39 .