The Philadelphia Group is a gold mine located in Tuolumne county, California at an elevation of 2,799 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: 2,799 Feet (853 Meters)
Commodity: Gold
Lat, Long: 37.845, -120.22472
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.
Philadelphia Group MRDS details
Site Name
Primary: Philadelphia Group
Secondary: Boston Rhode Island
Commodity
Primary: Gold
Location
State: California
County: Tuolumne
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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 (Workings): 3 ADITS 60 , 450 , AND 320 FT.
Comment (Geology): GEOL.DESC: VEIN 10 TO 30 INCHES THICK IN BLUISH-GRAY SLATE CONTAINING LARGE PERCENT OF PYRITE.
Comment (Deposit): THIS GROUP IS A RELOCATION OF THE OLD MARTIN MINE. MOST OF THE SIGNIFICANT DONE BEFORE 1900 .
References
Reference (Deposit): CRAWFORD, J.J., 1896 , THIRTEENTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 13 , P. 488
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.
