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  3. Mineral Resource Data System (MRDS)

Dexter Claim

Occurrence in Pennington county in South Dakota, United States with commodities Copper, Gold, Silver, Lead
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10055615
MRDS ID SD02214
Record type Site
Current site name Dexter Claim
Alternate or previous names Ashley & Nyswanger

Geographic coordinates

Geographic coordinates: -103.47139, 44.06496 (WGS84)
Elevation 1524
Relative position 2 MILES SOUTHEAST OF PACTOLA, 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

Pactola Dam(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rapid(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 001N 005E 12 South Dakota

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Lead Primary

Materials information

Materials Type of material
Copper Ore
Galena Ore
Gold Ore
Silver Ore
Quartz Gangue

Alteration

  • (Local) Iron Oxide Staining, Copper Stains.

Host and associated rocks

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

Nearby scientific data

(1) -103.47139, 44.06496
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Schist Strikes N. 67 E. And Dips 60 - 65 S.E.

Ore body information

  • General form QUARTZ STRINGERS

Controls for ore emplacement

  • Quartz Stringers

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Pactola District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Charles M. Ashley And Lydia Nyswanger

Comments on the workings information

  • TWO OPEN CUTS, 15 FEET APART. THE EAST CUT IS 30 FEET LONG IN 2 BENCHES, THE OTHER IS 20 FEET LONG AND 5 FEET DEEP AT THE FACE

Comments on development

  • FOUR UNPATENTED CLAIMS

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 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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