The Gruss is a gold and copper mine located in Plumas county, California at an elevation of 3,799 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: 3,799 Feet (1,158 Meters)
Commodity: Gold, Copper
Lat, Long: 40.03139, -120.72000
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.
Gruss MRDS details
Site Name
Primary: Gruss
Secondary: Genesee
Secondary: Genesee Valley
Secondary: Ward
Commodity
Primary: Gold
Primary: Copper
Secondary: Silver
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
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
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
Ore: Tetrahedrite
Ore: Gold
Ore: Bornite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Calcite
Comments
Comment (Geology): GEOL.DESC: FOOTWALL IS ALTERED SCHIST AND IN SOME PLACES, SLATE. THE HANGING WALL IS BLACK SLATE, ALTERED AND IRON STAINED NEAR THE VEIN.
Comment (Deposit): COMPRISED OF 180 ACRES.
Comment (Production): PRODUCED COPPER IN EARLY DAYS: GOLD DURING 1890'S : PRODUCTION $460,000 IN 1918 MOSTLY IN GOLD.
Comment (Workings): 400 FT. VERTICAL SHAFT WITH 3 LEVELS AT 70 , 200 AND 400 FT. THE 200 FT. LEVEL HAS BEEN DRIVEN NORTH 275 FT. AND SOUTH 175 FT., THE 400 FT. LEVEL, NORTH FOR 245 FT. AND SOUTH 250 FT.
Comment (Deposit): CHARACTER OF DEPOSIT IS CRUSHED AND BRECCIATED SHEAR ZONES IN SLATES AND SCHISTS NEAR CONTACT OF SLATES AND META-ANDESITE. NO WELL-DEFINED VEINS, BUT PARALLEL STRINGERS OF QTZ. AND CALCITE OCCUR. DECOMPOSED AND ALTERED ROCKS ARE IRON-STAINED, GOLD OCCURS IN NARROW SEAMS AND POCKETS CONTAINING LIMONITE AND MANGANESE OXIDE. TWO PARALLEL ZONES 20 - 30 FT. APART.
References
Reference (Deposit): ERIC, J.H., 1948 , COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 287
Reference (Deposit): LOGAN, C.A., 1920 , PLUMAS COUNTY; 17TH REPT. STATE MIN.; CALIF. MIN. BUR., P. 466 - 468
Reference (Deposit): MAC BOYLE, E., 1918 , PLUMAS COUNTY; 16TH REPT. STATE MIN.; CALIF. MIN. BUR., P. 124 - 126
Reference (Production): ERIC, J.H., 1948 , P. 287
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.
