The Mokelumne River is a gold mine located in Calaveras county, California at an elevation of 249 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: 249 Feet (76 Meters)
Commodity: Gold
Lat, Long: 38.2022, -120.96580
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.
Mokelumne River MRDS details
Site Name
Primary: Mokelumne River
Commodity
Primary: Gold
Secondary: Platinum
Location
State: California
County: Calaveras
District: Camanche District (Mokelumne River)
Land Status
Not available
Holdings
Not available
Workings
Type: Surface
Ownership
Owner Name: American Dredging Co.
Years: 1918 -
Production
Not available
Deposit
Record Type: District
Operation Category: Producer
Deposit Type: Stream Placer
Operation Type: Placer
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Form: STREAM SEDIMENT DEPOSITS
Structure
Not available
Alterations
Not available
Rocks
Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene
Name: Gravel
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Workings): DREDGING
Comment (Geology): FALSE BEDROCK OF VOLCANIC ASH
Comment (Deposit): RECORD M005603 HAS BEEN DELETED. SEE ALSO: MRDS M045335, M045337.
Comment (Location): MAY INCLUDE CAMANCHE-LANCHA PLANA PLACER. LOCATION GIVEN IS FORMER MOUTH OF CHINA GULCH, NOW BELOW CAMANCHE RESERVOIR
Comment (Deposit): GRAVELS ARE 6-35 FT DEEP, AVERAGE 20 FT
Comment (Production): GOLD PRODUCTION LESS THAN 20 FINE OZ/YR AFTER 1925. SMALL RECOVERY OF PT FROM DREDGING OPERATIONS. PGM AND AU ESTIMATES INCLUDE ORE DERIVED FROM ALL DREDGED AREAS IN AREA OF CAMANCHE RESERVOIR
Comment (General): Changed this from a site to a District because it applies to a stretch of the Mokelumne River, not a particular property.
References
Reference (Production): FIRST PT EST BASED ON MRDS RECORD M005603
Reference (Deposit): LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 31-32.
Reference (Deposit): CLARK, W.B., AND LYDON, P.A., 1962, MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY COUNTY REPORT 2, P. 76-84.
Reference (Deposit): LOGAN, C.A., 1925, CALAVERAS COUNTY: CALIFORNIA STATE MINING BUREAU, 21ST REPORT OF THE STATE MINERALOGIST, NO. 2, P. 163.
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.
