Alpha-Platus Mine

Past Producer in Lawrence county in South Dakota, United States with commodities Gold, Silver
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. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10055477
MRDS ID SD02030
Record type Site
Current site name Alpha-Platus Mine
Alternate or previous names Golden Reward Group

Geographic coordinates

Geographic coordinates: -103.81614, 44.3369 (WGS84)
Elevation 1792
Relative position SOUTH SIDE OF BALD MOUNTAIN, NORTH SIDE OF NEVADA GULCH NEAR THE CENTER OF THE EAST EDGE OF SEC. 1 , T 4 N, R 2 E

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 South Dakota

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Silver Ore

Alteration

  • (Local) Oxidized Ore

Analytical data

Result MEDIUM GRADE

Nearby scientific data

(1) -103.81614, 44.3369

Economic information

Geologic structures

Type of structure Local
Structure description Series Of Minor North - South Faults Complicates The Structure And The 91 M Tornado Fault Cuts Off The Mine To The West.

Controls for ore emplacement

  • North - South Fractures; Lower Ore Zone; Northern Extension Of The Tornado Ore Bodies

Economic information about the deposit and operations

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

Mining district

District name Ruby Basin District

Workings at the site

  • Type of workings Underground
    Length 351M

Comments on the workings information

  • ADIT EXTENDING WESTWARD

Reference information

Bibliographic references

  • Deposit

    US 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-MAY-1979 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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