The Green Monster is a copper mine located in Mariposa 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.
Green Monster MRDS details
Site Name
Primary: Green Monster
Secondary: Copper Mtn.
Secondary: Legioneer
Secondary: Copper Queen
Commodity
Primary: Copper
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Dr. Felix A. Smith And Marie D. Kellogg
Production
Year: 1904
Time Period: 1904
Material type: ORE
Description: Cp_Grade: ^Avg. 6% Cu
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1861
Years of Production:
Organization:
Significant: N
Deposit Size: M
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: Chalcocite
Ore: Malachite
Ore: Cuprite
Ore: Copper
Comments
Comment (Deposit): PRESENT GRP INCLUDES 11 UNPATENTED CLS., THE AMADOR, COPPER CHIEF, COPPER KING, COPPER MOUNTAIN, COPPER PEAK, DISCOVERY, SAN FRANCISCO (FRISCO), GREEN MTN., JULIET AND LAST CHANCE. TWO PATENTED CLAIMS INCLUDED ARE THE COPPER QUEEN AND BUENA VISTA. SMITH OWNS ALL UNPATENTED CLAIMS AND 1/2 INTEREST IN THOSE PATENTED.
Comment (Production): PRODUCTION FIGURES REPRESENT AMOUNT AND TYPE OF ORE SHIPPED DURING EARLY 1900'S, BUT NOT THE ONLY SHIPMENTS MADE.
Comment (Deposit): ORE IN UPPER OR OXIDIZED PARTS OF SHOOTS CONTAIN VARIOUS ORE MINERALS, PRIMARY ORES IN LOWER PARTS OF SHOOTS MADE UP CHIEFLY OF CHALCOPYRITE AND PYRRHOTITE.
Comment (Workings): MORE THAN 4,000 FT. OF UNDERGROUND WORKINGS INCLUDING NUMEROUS OPENINGS TO THE SURFACE.
Comment (Geology): GEOL.DESC: SCHIST CUT BY DIKES AND IRREGULAR INTRUSIONS OF GRANITIC ROCKS.
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. 65 - 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.
