Unknown

The Unknown is a mine located in Pennington county, South Dakota at an elevation of 5,121 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

Name: Unknown  

State:  South Dakota

County:  Pennington

Elevation: 5,121 Feet (1,561 Meters)

Commodity:

Lat, Long: 43.9306, -103.58440

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.


Satelite image of the Unknown

Unknown MRDS details

Site Name

Primary: Unknown


Commodity

Tertiary: Tungsten


Location

State: South Dakota
County: Pennington


Land Status

Not available


Holdings

Type: Located Claim


Workings

Not available


Ownership

Owner Name: Public Domain-Us Forest Service
Percent: 100.0
Home Office: South Dakota
Info Year: 1976


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N


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

Not available


Analytical Data

Not available


Materials

Not available


Comments

Comment (Geology): A 2 TO 3 FT WIDE QTZ VEIN STRIKING N10W AND DIPPING GONE SMALL CRYSTALS OF WOLFRAMITE ARE ASSOCIATED WITH MICA AND GR ALONG MARGINS OF THE VEIN DEVELOPMENT IS BY SHALLOW TRENCHES AND TEST PITS NO RECORDED PRODUCTION TEST PITS AND TRENCHES NOW FILLEDIN QTZ VEIN NO LONGER VISIBLE HARD COPY FILE CONTAINS FILE REPORT PLUS MAPS.


References

Reference (Deposit): U S BUREAU OF MINES INFO CIRC 7707 P 49 50

Reference (Deposit): SOUTH DAKOTA SCHOOL OF MINES BULL 10 1914 P 220

Reference (Deposit): SOUTH DAKOTA SCHOOL OF MINES BULL 12 1918 P 62

Reference (Deposit): SOUTH DAKOTA SCHOOL OF MINES BULL 17 1937 P 166

Reference (Deposit): G IN SOUTH DAKOTA P 29

Reference (Deposit): GEOL SURVEY BULL 380 1909 P 154

Reference (Deposit): CUMMINGS J B REPT OF S DAK STATE PLANNING BOARD 1936 TUNGSTE


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