The Mariposa is a gold mine located in Sierra 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.
Mariposa MRDS details
Site Name
Primary: Mariposa
Commodity
Primary: Gold
Location
State: California
County: Sierra
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
Name: Gabbro
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Deposit): VEIN
Comment (Location): UTM ACC. NE 1/4 03
Comment (Production): IDLE SINCE ABOUT 1902 . TOTAL PRODUCTION, W. ECLIPSE MINE, EST. TO BE $118,000 DOLLARS.
Comment (Workings): SEVERAL ADITS DRIFTS ON THE SAME VEIN.
Comment (Geology): FISSURE VEIN FROM 18 IN. TO 2 FT. THICK. SERPENTINE FOOTWALL, SCHIST HANGING WALL. ADJOINS ECLIPSE MINE. AMPHIBOLITE SCHIST CUT ON EACH SIDE OF THE VEIN BY IRREGULAR DIKES OF SERPENTINE. SOUTHERN CONTINUATION OF OPHIR VEIN. VEIN WELL DEFINED BUT IN S PART OF ADIT HAS NUMEROUS SML. BRANCHES. A SML. W DIPPING VEIN E OF ADIT AGREES IN PROJECTION W. FAULT ON 2100 LEVEL OF SIXTEEN TO ONE MINE.
Comment (Deposit): AROUND 1918 INCLUDED ECLIPSE CLAIM, WHICH SEE. OWNED IN 1925 BY OPHIR MINING CO. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 60 .
Reference (Deposit): LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 179 .
Reference (Deposit): MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC. 1918 , P. 101 .
Reference (Production): FERGUSON AND GANNETT, 1932
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.
