The Fern Cliff Prospect is a tungsten mine located in Custer county, South Dakota at an elevation of 4,600 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: 4,600 Feet (1,402 Meters)
Commodity: Tungsten
Lat, Long: 43.85222, -103.37806
Map: View on Google Maps
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Fern Cliff Prospect MRDS details
Site Name
Primary: Fern Cliff Prospect
Commodity
Primary: Tungsten
Location
State: South Dakota
County: Custer
District: Unorganized District
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.
Administrative Organization: Black Hills National Forest
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Friend C. Robertson
Owner Name: T. J. Oltman Of Lemmon And W. D. Fillmore Of Spearfish
Years: 1944 -
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: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Scheelite
Ore: Wolframite
Gangue: Quartz
Gangue: Pyrite
Comments
Comment (Deposit): WESTERN VEIN STRIKES N AND IS FROM 1.5 TO 4 FT WIDE. THE EASTERN VEIN STRIKES N 30 W AND IS ABOUT 2 FT THICK, THEY JOIN TO FORM A SINGLE VEIN ABOUT 4 FT WIDE.
Comment (Geology): BELOW ZONE OF OXIDATION
Comment (Location): ONE SOURCE LOCATES THE MINE IN SECTION 26
Comment (Workings): WITH DRIFTS AND TRENCHING; 2 SHAFTS
References
Reference (Deposit): USBM CIRC 7707, P. 85-86.
Reference (Deposit): ROBERTS, W.L. AND RAPP, G. JR., 1965, MINERALOGY OF THE BLACK HILLS, BULLETIN NO. 18 OF THE SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY
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