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  3. Mineral Resource Data System (MRDS)

Michigan Placer Ground

Occurrence in Pennington county in South Dakota, United States with commodities Tungsten, Mica, Feldspar
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055670
MRDS ID SD02280
Record type Site
Current site name Michigan Placer Ground

Geographic coordinates

Geographic coordinates: -103.55167, 43.88802 (WGS84)
Elevation 1634
Relative position 4.5 MILES SOUTH OF HILL CITY, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hill City(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Cheyenne-Spring(hydrologic unit)

Cheyenne(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Black Hills National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States South Dakota Pennington

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 002S 005E 08 South Dakota

Comments on the location information

  • S 1/2

Commodities

Commodity Importance
Tungsten Critical Primary
Mica Primary
Feldspar Primary

Materials information

Materials Type of material
Feldspar Ore
Muscovite Ore
Wolframite Ore
Garnet Gangue
Quartz Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Schist
    Rock description Schist

Nearby scientific data

(1) -103.55167, 43.88802
ListMap

Economic information

Ore body information

  • General form DIKE (PEGMATITE)
    Dip 15 NW
    Thickness 0.91M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Hill City District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Ed Nelson

Comments on the production information

  • THERE HAS BEEN NO RECORDED TUNGSTEN PRODUCTION. THE HISTORY OF THE GROUND AS A GOLD PLACER IS NOT KNOWN.

Comments on the workings information

  • SEVERAL SMALL TEST PITS

Comments on development

  • APPROXIMATELY 90 ACRES

Reference information

Bibliographic references

  • Deposit

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

General comments

Subject category Comment text
Deposit QUARTZ VEIN INFO LISTED AND THE VEIN IS CONFORMABLE WITH THE SCHIST AND DIPS 15 NW. MICA IS CONCENTRATED ALONG THE CONTACT WITH THE SCHIST.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1980 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site