The Washington is a gold mine located in Mariposa county, California at an elevation of 1,024 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: 1,024 Feet (312 Meters)
Commodity: Gold
Lat, Long: 37.52639, -120.22361
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.
Washington MRDS details
Site Name
Primary: Washington
Secondary: Jenny Lind
Secondary: Red Cloud
Commodity
Primary: Gold
Secondary: Copper
Secondary: Lead
Secondary: Silver
Location
State: California
County: Mariposa
District: Hornitos
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Pacific Mining Co.
Production
Year: 1942
Time Period: 1939 - 1942
Material type: PB
Description: Cp_Grade: ^0.14 Oz Ag/Ton
Year: 1942
Time Period: 1939 - 1942
Material type: CU
Description: Cp_Grade: ^0.064 Lb Pb/Ton
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1850
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Hornblendite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Pyrite
Ore: Gold
Gangue: Quartz
Gangue: Ankerite
Comments
Comment (Production): 1851 6 STAMP MILL PRODUCED 1000 OZ AU/DAY. SOME BONANZA ORE, BUT RECENT PRODUCTION FROM ORE BETWEEN $6.50 - $7/TON. ORE AVG. $25/TON AT $13/OZ IN MIDDLE 1870'S .
Comment (Deposit): VEIN, AVG 6 - 8 FT THICK. ALSO MASSES OF WALL ROCK IMPREGNATED W/AURIFEROUS PYRITE RUNNING 0.09 OZ AU/TON
Comment (Workings): 4 SHAFTS, EXTENSIVE DRIFTING & STOPES
Comment (Geology): WALL ROCKS ARE MAINLY MICACEOUS AND AMPHIBOLE-BEARING SCHISTS AND DARK QUARTZ-BIOTITE HORNFELSES OF UPPER JURASSIC AGE. VEIN IS ACCOMPANIED BY A LIGHT-COLORED FELSITIC DIKE WHICH ADJOINS THE VEIN ON THE FOOTWALL SIDE IN THE SOUTHEAST WORKINGS AND ON THE HANGING WALL SIDE IN THE NORTHWEST WORKINGS. SMALL, IRREGULAR INTRUSIONS OF HORNBLENDIC GRANITIC ROCK PENETRATE TO THE SURFACE. MUCH OF THE METAMORPHIC ROCK HAS BEEN DERIVED FROM PLATY, TUFFACEOUS METASEDIMENTS.
Comment (Deposit): PATENTED ; INFO.SRC : 1 PUB LIT
References
Reference (Production): BOWEN & GRAY 1957
Reference (Deposit): BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 179 - 181 , 314
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.
