The Johnstone Mine is a gold mine located in Calaveras county, California at an elevation of 2,700 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: 2,700 Feet (823 Meters)
Commodity: Gold
Lat, Long: 38.405, -120.54861
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.
Johnstone Mine MRDS details
Site Name
Primary: Johnstone Mine
Secondary: L.G. Johnstone Mine
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
Form: VEIN
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Commodity): ORE SAID TO AVERAGE $16 PER TON WITH 40 % OF AU IN SULFIDES
Comment (Production): ACTIVE 1934 - 1936
Comment (Workings): DEVELOPED BY 110 FT INCLINED SHAFT WITH DRIFTS 50 FT TO S & N ON 50 FT LEVEL, CROSSCUTS AND OTHER DRIFTS
Comment (Geology): THOUGHT TO BE EXTENSION OF CARLTON VEIN, VEIN AVERAGES 4 FT. THICKNESS
References
Reference (Production): LOGAN ( 1936 )
Reference (Deposit): LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 266
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.
