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  3. Mineral Resource Data System (MRDS)

Hawkeye-Pluma Mine

Past Producer in Lawrence county in South Dakota, United States with commodities Gold, Silver
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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. 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 10055545
MRDS ID SD02120
Record type Site
Current site name Hawkeye-Pluma Mine

Geographic coordinates

Geographic coordinates: -103.75696, 44.36135 (WGS84)
Elevation 1646
Relative position ABOUT 1 MI NORTHEAST 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 005N 003E 28 South Dakota

Comments on the location information

  • SE 1/4 , SOUTH OF GENTLE ANNIE MINE

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Silver Ore
Pyrite Gangue

Alteration

  • (Local) Conglomerate Cemented With Pyrite, And Weathers To Iron Oxide In Parts Of The Mine.

Analytical data

Result 0.5 OZ OF AU/TON

Host and associated rocks

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

Nearby scientific data

(1) Rhyolitic Intrusive Rocks
ListMap

Economic information

Ore body information

  • General form CHANNEL FILL
    Thickness 12.19M
    Length 396.24M
    Width 18.29M

Controls for ore emplacement

  • Basal Conglomerate

Comments on the geologic information

  • ORE BODY FILLS AN OLD CHANNEL ON THE PRECAMBRIAN SURFACE

Economic information about the deposit and operations

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

Mining district

District name Lead District

Ownership information

  • Type Owner-Operator
    Owner Homestake Mining Co.

Comments on the workings information

  • STOPING FROM FOUR DRIFTS DRIVEN WEST FROM POINTS ALONG THE HILLSIDE, COMING IN UNDER THE ORE BODY. ONE SHAFT EXTENDED FROM THE SURFACE TO INTERSECT THE ORE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOLD VALUES CONFINED TO BOTTOM FEW FEET. DEPOSIT IS ON A RIDGE JUST EAST OF THE HOMESTAKE OPEN CUT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1979 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Homestake Mining Co. — acquired by Subsidiary of Barrick Gold (2001)
    Operator of the historic Homestake Mine in South Dakota; acquired by Barrick Gold in 2001.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

External references

Maps centered on this site