The Malvina is a gold mine located in Mariposa county, California at an elevation of 1,949 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: 1,949 Feet (594 Meters)
Commodity: Gold
Lat, Long: 37.69806, -120.20250
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.
Malvina MRDS details
Site Name
Primary: Malvina
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Copper
Location
State: California
County: Mariposa
District: Coulterville
Land Status
Not available
Holdings
Not available
Workings
Type: Surface
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: M
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
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Gangue: Ankerite
Comments
Comment (Location): UTM EST. ; INFO FROM LAND.ST :UNDETERMINED
Comment (Production): NO PRODUCTION SINCE 1942 . TOTAL PRODUCTION PROBABLY IN EXCESS OF $1,000,000 , TOTAL RECORDED PRODUCTION $867,000 .
Comment (Deposit): VEIN, AVG. 10 FT. THICK
Comment (Workings): TWO SHAFTS. MAIN SHAFT HAS FIVE LEVELS. MOST ORE STOPED ABOVE 600 FT. LEVEL.
Comment (Geology): GEOL.DESC: LOGAN ( 1935 ) MENTIONS A STRIP OF GREENSTONE ON THE HANGING WALL SIDE. THE VEIN HAS FORMED A FEW HUNDRED FEET FROM THE CONTACT BETWEEN MARIPOSA FM AND PYROXENE ANDESITE GREENSTONE OF THE PENON BLANCO MEMBER OF THE AMADOR GROUP. THE MARIPOSA SLATE OCCUPIES A SYNCLINAL TROUGH FAULTED OFF ON THE NORTHEAST BY THE MAIN BRANCH OF THE MOTHER LODE THRUST. WEST OF THE MALVINA VEIN & N OF THE PATSOI CLAIM ARE CONGLOMERATIC BEDS NEAR THE BASE OF THE MARIPOSA FM CONTAINING QUARTZ AND SLATE PEBBLES. MARIPOSA IS IN GRADATIONAL CONTACT WITH THE AMADOR GREENSTONES.
References
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. 122 - 126 , 280 .
Reference (Deposit): CASTELLO, W. O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P. 123 .
Reference (Deposit): LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU. P. 97 .
Reference (Deposit): LOGAN, C. A., 1935 , THE MOTHER LODE BELT OF CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 108 , P. 183 - 184 .
Reference (Deposit): 5) AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 12 .
Reference (Production): BOWEN & GRAY, 1957
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.
