The Oro Grande is a gold mine located in San Bernardino county, California at an elevation of 3,848 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: 3,848 Feet (1,173 Meters)
Commodity: Gold
Lat, Long: 34.65389, -117.26306
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.
Oro Grande MRDS details
Site Name
Primary: Oro Grande
Secondary: Oro Grande 1
Commodity
Primary: Gold
Location
State: California
County: San Bernardino
Land Status
Land ownership: Private
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: Surface/Underground
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
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Gangue: Quartz
Comments
Comment (Deposit): FIRST WORKED PRIOR TO 1890 BY ORO GRANDE MINING CO. LAST WORKED 1939-1941. 7 CLAIMS ; INFO.SRC : 1 PUB LIT
Comment (Workings): 2 SHAFTS, 1500 FT. AND 150 FT. DEEP. OPEN CUT 200 FT. LONG, 20 FT. DEEP.
Comment (Location): UTM ACC SE 1/4 NE 1/4
Comment (Deposit): 2 PARALLEL 1-6 FT. THICK BANDED QUARTZ VEINS. THEY ARE INTERSECTED BY A SERIES OF NE-TRENDING FRACTURES.
Comment (Production): MATERIAL FROM OPEN CUT WAS MILLED & RETURNED VALUE OF $4.50/TON IN GOLD ON THE PLATES. NO OTHER PRODUCTION RECORD FOUND.
References
Reference (Deposit): SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, SOUTHERN CALIFORNIA, V. 3, P. 49
Reference (Deposit): WRIGHT, L.A., AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIF, TABULATED LIST: CALIF. JOUR. MINES & GEOLOGY, V. 49, NOS. 1 & 2, P. 52
Reference (Deposit): TUCKER, W.B. AND SAMPSON, R.J., 1931, GOLD-SAN BERNARDINO COUNTY, CALIF: CALIF. JOUR. MINES AND GEOLOGY, V. 27, P. 308
Reference (Deposit): BOWEN, O.E., 1954, GEOLOGY & MINERAL DEPOSITS OF THE BARSTOW QUADRANGLE, SAN BERNARDINO CO., CALIF.: CALIF. DIV. MINES & GEOLOGY BULL. 165, P. 130-131.
Reference (Production): TUCKER & SAMPSON (1931) BOWEN (1954)
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.
