The Oro Rico Penon Blanco is a gold mine located in Mariposa 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.
Oro Rico Penon Blanco MRDS details
Site Name
Primary: Oro Rico Penon Blanco
Commodity
Primary: Gold
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Oro Rico Mines Co.
Home Office: C/O A. D. Vencile
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
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 (Production): ONE OF THE EARLIEST WORKED CLAIMS IN THE COUNTY. CONSIDERABLE DEVELOPMENT HAD BEEN MADE BY 1868 AND SEVERAL ORE SHOOTS 2-4 FT. THICK HAD BEEN DISCOVERED AND ORE AVERAGED $10 - $12 PER TON. WORKED INTERMITTENTLY UNTIL 1912; LITTLE OR NO WORK DONE UNTIL AFTER 1928 DUE TO LITIGATION; SOME EXPLORATION AND DEVELOPMENT DONE IN 1934; LITTLE OR NO WORK DONE SINCE. TOTAL PRODUCTION, ALTHOUGH INCOMPLETELY RECORDED, IS SMALL.
Comment (Workings): ADITS, SHAFTS, TUNNELS, DRIFTING; IN 1954 TWO WORKINGS WERE STILL RECOGNIZABLE ON THE PENON BLANCO CLAIM BUT NONE ARE ACCESSIBLE WITHOUT SOME CLEANING OUT.
Comment (Deposit): CONSISTS OF THE PATENTED CLAIMS OLD JUDGE, SO. JUDGE, LITTLE JUDGE, PENON BLANCO AND NO. PENON BLANCO, AND UNPATENTED STAR AND STEVENSON, TOTALING MORE THAN 100 ACRES. COPPER PRODUCTION LESS THAN 100,000 LBS - DOM BULL. 144, PT. 3 1948, P. 269. LOCATION MAY OR NOT BE THE PROSPECTS SHOWN IN THE NE1/4 OF SEC. 19, SW1/4 SEC. 20, NW1/4 SEC. 29, U.S. GEOL. SURVEY QUAD. COULTERVILLE, CALIF., 1949
References
Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS. 1 & 2, JAN.-APRIL, 1957, PP. 147-148, 294; V. 53, NOS. 3 & 4, JULY-OCT., 1957, P. 551
Reference (Deposit): DOM BULL. 108, 1934, P. 185-6
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.
