The Riley is a tungsten, copper, gold, and silver mine located in San Bernardino 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
Elevation:
Commodity: Tungsten, Copper, Gold, Silver
Lat, Long: 35.36083, -115.54167
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.
Riley MRDS details
Site Name
Primary: Riley
Secondary: Blue Grass
Secondary: Excelsior
Secondary: Standard No. 1
Secondary: Standard Tungsten.
Commodity
Primary: Tungsten
Primary: Copper
Primary: Gold
Primary: Silver
Location
State: California
County: San Bernardino
Land Status
Not available
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: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR SHOOTS
Structure
Type: L
Description: Fault
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chrysocolla
Ore: Scheelite
Ore: Malachite
Gangue: Garnet
Gangue: Epidote
Comments
Comment (Production): 1902 THE EXCELSION YIELDED A SIGNIFICANT TONNAGE OF COPPER ORE. 1902 - 1908 OPERATIONS YIELDED CU-AU-AG ORE VALUED AT ABOUT $75,000. 1940 - 1941 SMALL TONNAGE OF TUNGSTEN ORE WAS MINED, NO OTHER INFORMATION AVAILABLE.
Comment (Workings): PRIOR TO 1908 ALL WORK WAS UNDERGROUND. SHAFT SEVERAL HUNDRED FEET DEEP, WITH SOME LATERAL WORKINGS. RECENT DEVELOPMENTS CONSISTS OF A SERIES OF OPEN CUTS, TRENDS AND RELATIVELY SHALLOW SHAFTS AND ADITS ALONG FAULT ZONE.
References
Reference (Deposit): TUCKER, W. B. AND SAMPSON, R. J., 1941; RECENT DEVELOPMENTS IN THE TUNGSTEN IN CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 37, NO. 4, P. 585 - 586.
Reference (Deposit): WRIGHT, L. A. AND OTHERS, 1953; MINES AND MINERAL DEPOSITS, SAN BERNARDINO COUNTY, CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 49, NOS. 1 & 2, P. 151.
Reference (Production): WRIGHT, L. A.
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.
