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  3. Mineral Resource Data System (MRDS)

Hardscrabble Mine

Past Producer in Lawrence county in South Dakota, United States with commodities Gold, Silver, Fluorine-Fluorite
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10055547
MRDS ID SD02123
Record type Site
Current site name Hardscrabble Mine

Geographic coordinates

Geographic coordinates: -103.82475, 44.32913 (WGS84)
Elevation 1890
Relative position 3.25 MI SOUTHWEST OF LEAD, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Lawrence(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lead(quadrangle 1:24,000 scale)

Rapid City(quadrangle 1:100,000 scale)

Rapid City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Belle Fourche(hydrologic unit)

Belle Fourche(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States South Dakota Lawrence

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 004N 002E 01,12 South Dakota

Comments on the location information

  • BETWEEN SEC. 1 AND 12 , AT THE HEAD OF FANTAIL GULCH

Commodities

Commodity Importance
Gold Primary
Silver Primary
Fluorine-Fluorite Critical Secondary

Materials information

Materials Type of material
Fluorite Ore
Gold Ore
Silver Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite
    Rock description Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -103.82475, 44.32913
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Dikes And Sills

Ore body information

  • General form IRREGULAR
    Strike N 20 E
    Dip 90

Controls for ore emplacement

  • Vertical Fractures, Dikes And Sills, Lower Contact Zone

Economic information about the deposit and operations

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

Mining district

District name Ruby Basin District

Ownership information

  • Type Owner-Operator
    Owner Mogul Mining Co.

Comments on the workings information

  • MINING WAS BY OPEN CUT AND BY STOPING FROM A TUNNEL DRIVEN WESTWARD TO INTERSECT THE VARIOUS SHOOTS.

Comments on development

  • ECON.COM: ORE WAS HIGHLY REFRACTORY, GENERALLY OF LOW GRADE

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit RHYOLITE WAS OFTEN MINERALIZED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1970 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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