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
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.
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" 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.
