Pine Tree and Josephine Mine

  

Mine Info

State: California

County: Mariposa

Elevation: 2,087 feet (636 meters)

Primary Mineral: Gold

Lat, Long: 37.5875, -120.11917



Pine Tree and Josephine Mine MRDS details

Site Name

Commodity

Location

Primary: "Pine Tree and Josephine Mine"
Primary: Gold
State: California
County: Mariposa
District:
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type:


Ownership

Production

Deposit

Owner Name: Pacific Mining Co.
Company ID:
Percent:
Home Office:
Info Year:
Years: -

Record Type: Site
Operation Category: Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year: 1849
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size:


Physiography

Mineral Deposit Model

Orebody

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Physiographic Detail:


Structure

Alterations

Rocks



Analytical Data

Materials



Comments

Comment Type:
Workings
Comment TOTAL LENGTH IN JOSEPHINE WORKINGS ABOUT 7700 FT.; WORKINGS IN PINE TREE AGGREGATE OVER 8 MILES.
Comment Type:
Production
Comment 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 Type:
Deposit
Comment 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 Category:
Deposit
Pages:
Reference: CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS. 1 & 2, JAN.-APRIL, 1957, PP. 151-155, 296
URL:
Reference Category:
Deposit
Pages:
Reference: REPORT OF STATE MINERALOGIST XXIV, PP 91, 110
URL:
Reference Category:
Deposit
Pages:
Reference: CALIF. JOUR. MINES & GEOL. V. 53, NOS. 3 & 4, P. 552; ADD. REF.: 17TH REPT. ST. MIN. P. 119, 133
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

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