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Chipmunk No. 25 Claim

Past Producer in Custer county in South Dakota, United States with commodities Feldspar, 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. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055738
MRDS ID SD02472
Record type Site
Current site name Chipmunk No. 25 Claim
Alternate or previous names Dilley's Chipmunk

Geographic coordinates

Geographic coordinates: -103.60778, 43.70246 (WGS84)
Elevation 1622
Location accuracy 500(meters)
Relative position 0.5 MILE SOUTHWEST OF SANATOR, CUSTER COUNTY

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cicero Peak(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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 004S 004E 14 South Dakota

Comments on the location information

  • NEAR THE CENTER OF THE SECTION

Commodities

Commodity Importance
Feldspar Primary
Beryllium Critical Primary

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Muscovite Gangue
Quartz Gangue
Tourmaline Gangue

Analytical data

Result WALL OF ONE OF THE OPEN PITS AVERAGES GREATER THAN 4% BE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.60778, 43.70246
ListMap

Economic information

Ore body information

  • General form DIKE
    Length 91.44M
    Width 7.62M

Economic information about the deposit and operations

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

Mining district

District name Custer District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Dilley, Ben
    Home office Custer, SD

Comments on the production information

  • THE AMOUNT OF BE SHIPPED REPRESENTS 1% OF THE MATERIAL EXCAVATED.

Comments on the workings information

  • TWO SMALL OPEN CUTS

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

  • Production

    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 UNPATENTED CLAIM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1981 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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

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