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Big Chief Mine

Past Producer in Pennington county in South Dakota, United States with commodities Feldspar, Mica, Beryllium
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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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10055681
MRDS ID SD02295
Record type Site
Current site name Big Chief Mine

Geographic coordinates

Geographic coordinates: -103.38195, 43.86524 (WGS84)
Elevation 1337
Relative position 5 1/2 MILES SOUTHEAST OF KEYSTONE, S.D.

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iron Mountain(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 006E 22 South Dakota

Comments on the location information

  • E 1/2, NE 1/4

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Secondary

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Mica Ore
Garnet Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Siderite Gangue
Sphalerite Gangue
Torbernite Gangue
Triphylite Gangue
Vivianite 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
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.38195, 43.86524
ListMap

Economic information

Ore body information

  • General form DIKES

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner J. Arthur Johnson

Workings at the site

  • Type of workings Surface/Underground
    Length 24.38M
    Overall width 18.29M

Comments on the workings information

  • SOUTHERN DIKE - A CUT 30 FEET WIDE AND 30 FEET DEEP EXPOSES A 20 FOOT FACE. NORTHERN DIKE - EXPOSED BY A KEYSTONE-SHAPED CUT 60 FEET WIDE AT TOP AND 40 FEET AT THE BOTTOM WITH AN EXPLORATION DRIFT 80 FEET DRIVEN FROM THE CENTER OF THE FACE.

Comments on development

  • UNPATENTED CLAIM ; ECON.COM: THE SOUTHERN DIKE YIELDED ABOUT 36 PERCENT GOOD-QUALITY 'BLUE' FELDSPAR.

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

  • Deposit

    MOORE, PAUL B., KAMPF, ANTHONY R., AND IRVING, ANTHONY J., 1974, AMERICAN MINERALOGIST, VOL. 59, PP. 900-905.

  • Deposit

    RITZ, CHARLES, ESSERE, ERIC J., AND REACOR, DONALD R., 1974, AMERICAN MINERALOGIST, VOL. 59, PP. 896-899.

  • Deposit

    MOORE, PAUL B., 1971, AMERICAN MINERALOGIST, VOL. 56, PP. 1-17./BAUER, WERNER H., 1969, AMERICAN MINERALOGIST, VOL. 54, PP. 1312-1323./ROBERTS W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18

General comments

Subject category Comment text
Deposit THERE ARE 2 LARGE PEGMATITE MASSES

Reporter information

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

Beyond USGS

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

External references

Maps centered on this site