The Sierra Group is a barium-barite and gold mine located in Mono county, California at an elevation of 9,101 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: 9,101 Feet (2,774 Meters)
Commodity: Barium-Barite, Gold
Lat, Long: 37.59556, -118.99028
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.
Sierra Group MRDS details
Site Name
Primary: Sierra Group
Commodity
Primary: Barium-Barite
Primary: Gold
Tertiary: Arsenic
Location
State: California
County: Mono
District: Mammoth Lakes
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
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
Analytical Data: ASSAYS EST. $4 AU/TON FROM A 4 FT.-THICK VEIN.
Materials
Ore: Gold
Ore: Barite
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Workings): ON SIERRA NO. 3 CLAIM, A TUNNEL WAS DRIVEN SOUTH 135 FT. ON VEIN. ON SIERRA NO. 4 CLAIM THERE IS A VERTICAL SHAFT 80 FT. DEEP - ALSO AN OPENCUT SOUTH OF THE SHAFT EXPOSES 4 FT. OF BARITE. ON NO. 6 CLAIM, CROSSCUT DRIVEN 400 FT. - NE 300 FT. FROM PORTAL. DRIFT 50 FT. NE AND 50 FT. SOUTHWEST.
Comment (Location): UTM EST. CORNERS OF SECS.
Comment (Production): SOME ASSESSMENT WORK. SMALL SHIPMENT IN 1940 , BY A. E. BEAUREGARD, BISHOP, CALIFORNIA. NO PRODUCTION RECORD FOUND.
Comment (Deposit): VEINS, 4 - 20 FT. THICK
Comment (Deposit): 6 CLAIMS. ADJOIN MAMMOTH MINE ON WEST AND NORTHWEST. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): RINEHART, C. D., AND ROSS, D. C., 1964 , GEOLOGY AND MINERAL DEPOSITS, MOUNT MORRISON QUADRANGLE, SIERRA NEVADA, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER NO. 385 , P. 99 .
Reference (Deposit): TUCKER, W. B., AND SAMPSON, R. J., 1940 , MINERAL RESOURCES OF MONO COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 36 , NO. 2 , P. 132 - 133 .
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.
