The Thorn 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.
Thorn MRDS details
Site Name
Primary: Thorn
Secondary: Illinois
Commodity
Primary: Gold
Location
State: California
County: Calaveras
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
Gangue: Quartz
Comments
Comment (Location): UTM EST. N 1/2 N OF DEMAREST MINE
Comment (Geology): 2 VEINS, ONE OF "RIBBON ROCK", ONE OF "GRAY ORE". ONE STRIKES NOSE, THE OTHER N 30 W. THE CONVERGE GOING N. SLATE FOOTWALL, SCHIST HANGING WALL WHICH ALSO CONTAINS SERPENTINE DIKE. VEINS LIE W OF GREENSTONE.
Comment (Production): NO OTHER PRODUCTION RECORD FOUND
Comment (Deposit): VEINS
Comment (Workings): 200 FT INCLINED SHAFT W 2 LEVELS
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. 159
Reference (Deposit): LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS CO.: CDM CALIF. JOUR. MINES & GEOL., VOL. 32, NO. 3, P. 309
Reference (Deposit): LOGAN, C. A., 1935 , MOTHER LODE GOLD BELT OF CALIF.: CDM BULL. 108, P. 148 & PL 6
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.
