The Johnnie Green is a copper mine located in Mariposa county, California at an elevation of 1,099 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: 1,099 Feet (335 Meters)
Commodity: Copper
Lat, Long: 37.28361, -120.03750
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.
Johnnie Green MRDS details
Site Name
Primary: Johnnie Green
Secondary: Green
Secondary: Johnny Green
Secondary: Jr.
Commodity
Primary: Copper
Secondary: Silver
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Replacement
Operation Type: Unknown
Discovery Year: 1863
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Workings): FOUR INCLINED SHAFTS OF UNKNOWN DEPTH, ONE CAVED ADIT: WORKINGS HAVE NO MEANS OF ACCESS.
Comment (Geology): GEOL.DESC: MINE AREA IS IN BELT OF QUARTZ - MICA AND QUARTZ - MICA - CHIASTOLITE SCHIST, STRIKES N 30 - 40 W, DIPS ROUGHLY 60 NE.
Comment (Deposit): THE PRIMARY ORE CONSISTS OF CHALCOPYRITE AND PYRITE OR PYRRHOTITE; THERE IS SOME CARBONATE ORE IN THE UPPER PARTS OF THE SHOOTS. THE WORKINGS HAVE NO MEANS OF ACCESS AND THERE WAS NO EQUIPMENT ON THE PROPERTY IN 1954. A SMALL SHIPMENT OF OXIDIZED ORE WAS SHIPPED FR. THIS AREA IN 1954 BUT IT IS NOW KNOWN WHICH PROPERTY THE ORE WAS FROM.
Comment (Production): 1866 ; 50 TONS OF COPPER ORE WERE SMELTED AND SHIPPED PER WEEK. 1907 HIGH-GRADE COPPER ORE WAS STILL BEING MINED. 1954 OXIDIZED ORE SHIPPED FROM THE AREA.
Comment (Deposit): ORE SHOOTS IMPREGNATING SCHIST IN REPLACEMENT MASSES BORDERING NARROW QUARTZ VEINS.
References
Reference (Deposit): BOWEN, O. E. AND CLIFFTON, G. H., 1957 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY, CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 1 & 2 , P. 66 .
Reference (Deposit): ERIC, J. H., 1948 , COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 267 .
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.
