The Blue Ledge is a copper and zinc mine located in Siskiyou county, California at an elevation of 5,000 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: 5,000 Feet (1,524 Meters)
Commodity: Copper, Zinc
Lat, Long: 41.95, -123.10000
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.
Blue Ledge MRDS details
Site Name
Primary: Blue Ledge
Commodity
Primary: Copper
Primary: Zinc
Secondary: Silver
Secondary: Gold
Secondary: Lead
Location
State: California
County: Siskiyou
District: Elliott Creek
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
Year: 1920
Time Period: 1920
Material type: ORE
Description: Cp_Grade: ^4.8 % Cu, .35 Oz/Ton Au, 1.5 Oz/Ton Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: L
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Model Name: Massive sulfide, kuroko
Orebody
Form: LENTICULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Quartz-Sericite
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrrhotite
Ore: Pyrite
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Galena
Ore: Limonite
Ore: Malachite
Gangue: Calcite
Gangue: Quartz
Gangue: Tourmaline
Gangue: Biotite
Comments
Comment (Production): AVERAGE SMELTER RECOVERY; 2.7 % ZN, 14 % CU, 5.8 OZ/TON AG AND .09 OZ/TON AU. MINOR LEAD RECOVERED.
Comment (Workings): PAY SHOOT 1500 FT. LONG AND 5 FT. WIDE DEVELOPED FOR LENGTH OF 1800 FT. AND DEPTH OF 600 FT. BY SERIES OF ADITS AND DRIFTS.
Comment (Geology): GEOL.DESC: FOOTWALL IS GRAY TO BLACK MICACEOUS SCHIST HANGING WALL IS WHITE MICA SCHIST.
References
Reference (Deposit): AVERILL, C. V., 1935 , MINES AND MINERAL RESOURCES OF SISKIYOU COUNTY; JOUR. MINES AND GEOLOGY; VOL. 31 , NO. 3 , P. 271 - 272
Reference (Deposit): GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA; JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 P. 701.
Reference (Deposit): O'BRIEN, J. C., 1947 , MINES AND MINERALS OF SISKIYOU COUNTY: JOUR. MINES AND GEOLOGY VOL. 43 , NO. 4 , P. 424.
Reference (Production): GOODWIN, J. G., 1957 , (SEE REF.)
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.
