The Blue Dipper Group is a tungsten 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.
Blue Dipper Group MRDS details
Site Name
Primary: Blue Dipper Group
Commodity
Primary: Tungsten
Location
State: California
County: Mariposa
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: AVG. .75% WO3
Materials
Ore: Pyrrhotite
Ore: Scheelite
Gangue: Epidote
Gangue: Wollastonite
Gangue: Quartz
Gangue: Calcite
Gangue: Tremolite
Gangue: Garnet
Comments
Comment (Location): UTM & SEC. PROJECTED RANGE WAS CHANGED FROM 20 TO 19 FROM DESCRIPTION OF LOCATION.
Comment (Production): NO PRODUCTION FIGURES REPORTED
Comment (Workings): IN 1954; UPPER TUNNEL WITH SEVERAL GALLERIES STRIKING N 55 E ABOUT 100 FT. LONG. SECOND TUNNEL WAS DRIVEN SE ABOUT 65 FT. BELOW MAIN TUNNEL, IT IS ABOUT 50 FT. LONG.
Comment (Geology): GEOL.DESC: SOME SCHEELITE OCCURS IN GRANODIORITE WHICH INTRUDES THE LIMESTONE.
Comment (Deposit): 1957, GROUP WAS UNDER LEASE TO INCLINE MINING COMPANY, LEE CUMEO, L. GARRIBOTTI, ETAL OF SAN FRANCISCO.
References
Reference (Deposit): BOWEN, O. E. AND CLIFFTON, G. H., 1957, MINES AND MINERAL DEPOSITS, MARIPOSA COUNTY; CA. JOUR. MINES AND GEOLOGY, VOL. 53, NO. 1&2, DIV. OF MINES, P. 196 - 197, 330
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.
