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Mary Group Mine

Past Producer in Lawrence county in South Dakota, United States with commodity Tungsten
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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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10104206
MRDS ID SD02084
Record type Site
Current site name Mary Group Mine
Alternate or previous names Power, Power #2, Smith, Union, Mary Claims

Geographic coordinates

Geographic coordinates: -103.70335, 44.33885 (WGS84)
Elevation 1646
Relative position 2.75 MI SOUTHEAST OF DEADWOOD, 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

Deadwood South(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)

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 Lawrence

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 004N 003E 01 South Dakota

Comments on the location information

  • NEAR THE CENTER OF THE SECTION

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Huebnerite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Porphyry Sill
    Rock description Porphyry Sill
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -103.70335, 44.33885
ListMap

Economic information

Ore body information

  • Strike N 30 W
    Dip 90

Controls for ore emplacement

  • At Contact Between The Basal Quartzite And The Overlying Dolomite. Adjacent To Vertical Fracture

Comments on the geologic information

  • SILL OVERLIES DOLOMITE ABOUT 6 FT ABOVE QUARTZITE IN THE MARY TUNNEL

Economic information about the deposit and operations

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

Mining district

District name Two Bit District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner-Operator
    Owner Pioneer Tungsten Mines, Inc.

Production statistics

  • Year 1916
    Material ORE W
    Accuracy Estimate
    Description Ap_Grade: ^28 % Tungstic Oxide
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Tungsten Tungsten 28wt-pct
  • Year 1940
    Material CON W
    Accuracy Estimate
    Description Ap_Grade: ^63.7 % Tunstic Oxide
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Tungsten Tungsten 64wt-pct

Workings at the site

  • Type of workings Underground
    Length 33.53M

Comments on the workings information

  • SHORT DRIFTS AND SHAFTS EXPOSE 110 FT OF THE VERTICAL

Comments on development

  • OVER ALL AREA OF THE CLAIM IS 45.63 AC. ; ECON.COM: 30 - TON MILL ON MARY CLAIM

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-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.

Maps centered on this site