The Round Valley is a tungsten mine located in Inyo 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.
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.
Round Valley MRDS details
Site Name
Primary: Round Valley
Secondary: Big Shoot Noble
Secondary: Nobles Camp
Commodity
Primary: Tungsten
Location
State: California
County: Inyo
District: Round Valley Area
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1945
Time Period: 1945
Year: 1918
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
Type: L
Description: Faults
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Scheelite
Gangue: Garnet
Gangue: Hornblende
Gangue: Pyroxene
Comments
Comment (Location): SE 1/4, UTM ACC
Comment (Workings): LARGE GLORY HOLE, INCLINED SHAFT 75 FT. (63 FT. VERTICAL DEPTH) DRIFT AT BOTTOM OF SHAFT EXTENDED 200 FT., INCLINED WINZE 60 FT. 100 FT. EAST IS ANOTHER ADIT AND GLORY HOLE. 400 FT. EAST ARE 3 SHORT ADITS AND A LARGE UNDERGROUND STOPE.
Comment (Geology): GEOL.DESC: DEPOSIT IS IN THE LARGEST PENDANT OF META-SEDIMENTARY ROCKS IN THE TUNGSTEN MILLS. PENDANT IS ELONGATED 4,000 FT. IN E-W DIRECTION, MAX. BREATH OF 600-1,150 FT. BEDS WITHIN PENDANT STRIKE NORTH AND DIPS 23-69W. ROCKS CONSISTS OF MARBLE, SCHIST AND QUARTZITE.
Comment (Deposit): CONSIDERED TO BE BEST PROSPECT IN AREA FOR MORE ORE AT DEPTH
References
Reference (Deposit): LEMMON, D.M., TUNGSTEN DEPOSITS IN THE US, VOL I; UNPUBLISHED DATA, P. 256-259.
Reference (Deposit): LEMMON, D.M. AND TWETO, O.L., 1962; TUNGSTEN IN THE US; USGS MAP, MR-25.
Reference (Production): LEMMON, D.M.
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.
