Pleasant Valley Mine

The Pleasant Valley Mine is a feldspar mine located in Custer 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

Name: Pleasant Valley Mine  

State:  South Dakota

County:  Custer

Elevation: 5,400 Feet (1,646 Meters)

Commodity: Feldspar

Lat, Long: 43.72167, -103.68083

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 Pleasant Valley Mine

Pleasant Valley Mine MRDS details

Site Name

Primary: Pleasant Valley Mine


Commodity

Primary: Feldspar
Secondary: Beryllium


Location

State: South Dakota
County: Custer
District: Custer District


Land Status

Administrative Organization: Black Hills


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Owner Name: C. A. Parker, Jr.
Home Office: Custer, S.D.

Owner Name: George Bland, Jr.
Years: 1943 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1943
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

Form: DIKE


Structure

Not available


Alterations

Not available


Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Not available


Materials

Ore: Feldspar
Ore: Beryl
Gangue: Quartz
Gangue: Mica
Gangue: Tourmaline
Gangue: Columbite
Gangue: Tantalite


Comments

Comment (Deposit): THE DIKE NARROWS TO 45 FT. THE MINE IS LOCATED ON A FRACTURE FILLING BODY THAT STRIKES AT RIGHT ANGLES TO A LARGER PEGMATITE THAT STRIKES N65E.

Comment (Workings): THERE ARE SEVERAL CUTS AND A SHALLOW SHAFT.

Comment (Commodity): BERYL IN SCATTERED CRYSTALS ARE FROM 0.5 TO 12 INCHES IN DIAMETER. IT IS RELATIVELY PURE BUT THE SMALL AVERAGE SIZE OF LESS THAN 2 INCHES PRECLUDES SORTING.


References

Reference (Deposit): ROBERTS, W. L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18.

Reference (Deposit): USGS PP 247, P. 177-178.

Reference (Deposit): U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.


The Top Ten Gold Producing States

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.