The Mastiff Group is a copper mine located in Pennington county, South Dakota at an elevation of 6,601 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: 6,601 Feet (2,012 Meters)
Commodity: Copper
Lat, Long: 43.94056, -103.73778
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.
Mastiff Group MRDS details
Site Name
Primary: Mastiff Group
Commodity
Primary: Copper
Location
State: South Dakota
County: Pennington
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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
Physiographic Detail: Copper Mountain
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: EXCEEDINGLY SMALL PERCENTAGE OF CHALCOPYRITE
Materials
Ore: Chalcopyrite
Gangue: Pyrite
Comments
Comment (Location): NE 1/4, NE 1/4, ALONG SIX MILE ROAD
Comment (Development): 2 PATENTED CLAIMS TOTALING 40 ACRES
Comment (Geology): A THIN ZONE OF SECONDARY MINERALS GIVES WAY TO PYRITE WITHIN A FEW FEET.
Comment (Workings): VIRTUALLY NO WORK HAS BEEN DONE.
References
Reference (Deposit): U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
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