Pena Blanco Mines Group

The Pena Blanco Mines Group is a gold mine located in Tuolumne county, California.

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

Name: Pena Blanco Mines Group  

State:  California

County:  Tuolumne

Elevation:

Commodity: Gold

Lat, Long: 37.96722, -120.47167

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.


Satelite image of the Pena Blanco Mines Group

Pena Blanco Mines Group MRDS details

Site Name

Primary: Pena Blanco Mines Group


Commodity

Primary: Gold


Location

State: California
County: Tuolumne


Land Status

Not available


Holdings

Not available


Workings

Not available


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: S


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


Comments

Comment (Geology): GEOL.DESC: QUARTZ EXPOSURES ON SURFACE ARE MASSIVE COVERING THE A SUMMIT OF THE HILL FOR A THICKNESS OF ALMOST 150 FT. A FAULT HAS DISPLACED THE ORE VEIN NEAR THE SURFACE. A SECOND VEIN OF UNKNOWN THICKNESS OCCURS ON THE FOOTWALL, BEING SEPARATED FROM THE CONTACT VEIN BY CLAY AND SLATY ROCK WITH MUCH QUARTZ IN SMALL VEINS.

Comment (Deposit): THIS GROUP OF CLAIMS INCLUDES PENA BLANCO, DOCTOR, LOOKOUT, LUCKY STAR, AND SARAH FRANCIS. PENA BLANCO IS THE PRINCIPAL CLAIM

Comment (Workings): CROSSCUT ADIT 135 FT. ON HANGING WALL, NOT REACHING VEIN. SECOND CROSSCUT ADIT 200 FT., SITUATED TO THE SOUTH OF FIRST ADIT.


References

Reference (Deposit): CRAWFORD, J.J., 1896 , THIRTEENTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 13 , P. 488

Reference (Deposit): TUCKER, W.B., TUOLUMNE COUNTY: CMB REPT. 14 , P. 159


California Gold

Where to Find Gold in California

"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.