The Unnamed Prospect is a silver, gold, copper, and molybdenum mine located in Nevada county, California.
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.
Primary Mineral: Silver, Gold, Copper, Molybdenum
Lat, Long: 39.43778, -120.56000
Map: View on Google Maps
Unnamed Prospect MRDS details
Primary: Unnamed Prospect
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: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Analytical Data: .315 - .163 % CU, .083 - .259 % MO WITH TRACES OF GOLD AND .2 OZ AG.
Analytical Data: ASSAYS ACROSS VEIN
Comment (Production): 2 TONS MINED AND STOCKPILED IN 1918
Comment (Deposit): QUARTZ VEINS, LENSES, AND STRINGERS IN METAVOLCANIC ROCKS, AVG. THICKNESS 1 FT.; ONE VEIN IS 3 FT. THICK, STRIKES N 60 - 70 E, DIPS 60 S; ANOTHER IS 4 FT. THICK, STRIKES N 80 E TO E - W, DIPS 40 S; AND ANOTHER IS 1 FT. THICK, STRIKES N 80 E AND DIPS STEEPLY SOUTH. MOLYBDENITE BEARING QTZ. VEINS ARE EMPLACED ALONG E - W STRIKING AND STEEPLY DIPPING JOINT SETS IN GRANODIORITE.
Comment (Workings): 40 FT. ADIT AND SEVERAL DRILL HOLES
Reference (Deposit): MINERALS FOR INDUSTRY, NORTHERN CALIF.; SUMMARY OF GEOLOGICAL SURVEY OF 1955 - 1961 , VOL. 2 ; SOUTHERN PACIFIC CO., 1964 , P. 24 - 25 AND 61