The Tollgate Prospect is a gold mine located in Calaveras 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.
Tollgate Prospect MRDS details
Site Name
Primary: Tollgate Prospect
Secondary: Claims: Port Arthur
Secondary: Marshall
Secondary: Prince
Secondary: Beaker
Commodity
Primary: Gold
Location
State: California
County: Calaveras
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
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
Gangue: Quartz
Comments
Comment (Production): ACTIVE PRIOR TO 1892 & INTERMITTENTLY THERE AFTER UNTIL 1925. LESS THAN 100 TONS MILLED REPORTED TO HAVE ASSAYED WELL AND TO HAVE YIELDED $4/TON IN GOLD, WITH AN UNKNOWN AMOUNT IN SULFIDES. THIS CAME FROM THE 100 FT LEVEL, BUT ABOUT 50 FT OF WORK ON THE 150 FT LEVEL WAS SAID TO ASSAY TOO LOW TO MAKE ORE PROFITABLE.
Comment (Workings): INCLINED SHAFT 150 FT. W LEVELS AT 100 & 150 FT 3-STAMP MILL, 1 VANNER, SMALL HOIST AND BUILDINGS ON PROPERTY.
Comment (Deposit): MAP GP-561 SHOWS SEVERAL MINE LOC. IN SE1/4 29, NE1/4 32. ; INFO.SRC : 1 PUB LIT
Comment (Location): UTM EST. NE 1/4 SEC 32 PORT ARTHUR, SE 1/4 29?
Comment (Deposit): VEIN
References
Reference (Deposit): CLARK, W. B., & LYDON, P. A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.: CALIF. DIV. MINES & GEOL., COUNTY REPORT 2, P. 34 - 35, 184 AND PL B
Reference (Deposit): LOGAN, C. A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS CO.: CDM CALIF. JOUR. MINES & GEOL., VOL. 32, P. 321
Reference (Deposit): LOGAN, C. A., 1934 , MOTHER LODE GOLD BELT OF CALIF.: CDM BULL. 108, P. 148, 159
Reference (Deposit): LOGAN, C.A., 1925 , SACRAMENTO FIELD DIVISION - CALAVERAS CO.: CALIF. MIN. BUREAU, REPT. 21ST STATE MINERALOGIST, P. 159 - 160
Reference (Production): CLARK, 1962
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.
