The Pine Tree and Josephine Mine is a gold mine located in Mariposa county, California at an elevation of 2,087 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: 2,087 Feet (636 Meters)
Commodity: Gold
Lat, Long: 37.5875, -120.11917
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.
Pine Tree and Josephine Mine MRDS details
Site Name
Primary: Pine Tree and Josephine Mine
Commodity
Primary: Gold
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Pacific Mining Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1849
Years of Production:
Organization:
Significant: N
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
Not available
Comments
Comment (Workings): TOTAL LENGTH IN JOSEPHINE WORKINGS ABOUT 7700 FT.; WORKINGS IN PINE TREE AGGREGATE OVER 8 MILES.
Comment (Production): ESTIMATED PRODUCTION IS OVER $4,000,000. LAST PERIOD OF OPERATION 1939-1944 YIELDING 35,215 OZ. GOLD AND 8219 OZ. SILVER FROM A TOTAL OF 248,481 TONS OF ORE, OR A GROSS OF ABOUT $1,242,000. PROPERTY IDLE SINCE 1944 BUT IS NO MEANS EXHAUSTED OF ORE AND AWAITS MORE FAVORABLE ECONOMIC CONDITIONS.
Comment (Deposit): INCLUDED IN ABOUT 5-1/3 SQ. MILES BELONGING TO PAC. MNG. CO., IN WHICH ARE ALSO LOCATED THE FRENCH, EVANS AND QUEEN SPECIMEN MINES. ORE MINERALS ARE CHIEFLY PYRITE, ARSENOPYRITE, NATIVE GOLD WITH MINOR CHALCOPYRITE, SPHALERITE, GALENA, NICCOLITE AND MILLERITE. COPPER IS THE ONLY OTHER MINERAL RECOVERED OTHER THAN GOLD OR SILVER. ERYTHRITE AND DANAITE, BOTH CONTAINING COBALT HAVE BEEN FOUND BUT PRESUMABLY ARE RARE AND WELL DISSEMINATED AND NO ATTEMPT HAS BEEN MADE TO RECOVER NICKEL OR COBALT. COPPER PRODUCTION LESS THAN 1000,000 LBS. - D.O.M. BULL. 144, PT. 3, 1948, P. 269 GERSDORFFITE HAS BEEN REPORTED AS OCCURRING WITH GARNIERITE IN THE PINE TREE MINE. - CALIF. JOUR. MINES & GEOL. V. 37, NO. 3, JULY, 1941, P. 491
References
Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS. 1 & 2, JAN.-APRIL, 1957, PP. 151-155, 296
Reference (Deposit): REPORT OF STATE MINERALOGIST XXIV, PP 91, 110
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 53, NOS. 3 & 4, P. 552; ADD. REF.: 17TH REPT. ST. MIN. P. 119, 133
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.
