The Mary Group Mine is a tungsten mine located in Lawrence county, South Dakota at an elevation of 5,400 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: 5,400 Feet (1,646 Meters)
Commodity: Tungsten
Lat, Long: 44.33889, -103.70278
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.
Mary Group Mine MRDS details
Site Name
Primary: Mary Group Mine
Secondary: Power
Secondary: Power #2
Secondary: Smith
Secondary: Union
Secondary: Mary Claims
Commodity
Primary: Tungsten
Location
State: South Dakota
County: Lawrence
District: Two Bit 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: Underground
Ownership
Owner Name: Pioneer Tungsten Mines, Inc.
Production
Year: 1940
Material type: CON W
Description: Ap_Grade: ^63.7 % Tunstic Oxide
Year: 1916
Material type: ORE W
Description: Ap_Grade: ^28 % Tungstic Oxide
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
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: Plutonic Rock
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Plutonic Rock
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian
Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data
Not available
Materials
Ore: Huebnerite
Comments
Comment (Location): NEAR THE CENTER OF THE SECTION
Comment (Development): OVER ALL AREA OF THE CLAIM IS 45.63 AC. ; ECON.COM: 30 - TON MILL ON MARY CLAIM
Comment (Workings): SHORT DRIFTS AND SHAFTS EXPOSE 110 FT OF THE VERTICAL
Comment (Geology): SILL OVERLIES DOLOMITE ABOUT 6 FT ABOVE QUARTZITE IN THE MARY TUNNEL
References
Reference (Deposit): US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688
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