The Black Spider is a gold 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.
Black Spider MRDS details
Site Name
Primary: Black Spider
Secondary: Gray Eagle
Secondary: Blue Jay
Commodity
Primary: Gold
Secondary: Silver
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Walter Mclean
Production
Year: 1935
Material type: AU
Description: Ap_Grade: ^Au .2 Oz/Ton
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
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Silver
Gangue: Quartz
Comments
Comment (Location): ADJOINS FLYAWAY GROUP OF MINES ON NW. UTM EST. SEC LINES PROJECTED.
Comment (Production): DURING 1935 ABOUT 480 TONS OF ORE YIELDED 85.48 OZ AU. WORKED BY HAND METHODS. IN 1954 AU & AG RECOVERED BY AMALGAMATION.
Comment (Deposit): QUARTZ VEIN
Comment (Workings): IN 1914, A 133-FT. INCLINED SHAFT, 355 FT. OF DRIFTS, 300-FT. CROSSCUT TUNNEL AND TWO STOPES.
Comment (Geology): GEOL.DESC: IN POCKETS, AND IN SULFIDE IMPREGNATED SERPENTINE. QUARTZ VEIN AT CONTACT OF GREENSTONE (NE) AND SERPENTINE (SW).
References
Reference (Deposit): BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 242 .
Reference (Deposit): WALLACE, R. E., ETAL, 1957 , THE MINERAL INDUSTRY OF CALIF.: US BUR. OF MINES MINERALS YEARBOOK FOR 1954 , VOL. 3 , P. 220 .
Reference (Production): REF. 1 AND REF. 2 .
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.
