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Montezuma and the Whizzers Mine

Past Producer in Lawrence county in South Dakota, United States with commodities Sulfur-Pyrite, Gold, Copper
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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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055512
MRDS ID SD02074
Record type Site
Current site name Montezuma and the Whizzers Mine
Alternate or previous names Gilmore Mine

Geographic coordinates

Geographic coordinates: -103.74335, 44.37052 (WGS84)
Elevation 1426
Relative position WEST EDGE 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)

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 27 South Dakota

Commodities

Commodity Importance
Sulfur-Pyrite Primary
Gold Secondary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore

Analytical data

Result GRAB SAMPLE SHOWS 0.05 % CU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Flag Rock Formation
    Rock description Flag Rock Formation
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -103.74335, 44.37052
ListMap

Economic information

Ore body information

  • Strike N 10 E
    Dip 70 E

Controls for ore emplacement

  • Replacement Occurs In A Black Graphitic Slate Member

Comments on the geologic information

  • UNIT HAS OUTCROP DISTANCE OF 3 - 4 MI.

Economic information about the deposit and operations

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

Mining district

District name Deadwood

Comments on the production information

  • PRODUCTION FROM 1900 UNTIL THE FIRST WORLD WAR.

Workings at the site

  • Type of workings Underground
    Overall length 198.12M
    Overall width 3.05M

Comments on the workings information

  • WORKINGS EXTEND SOUTH FROM THE PORTAL ON DEADWOOD CREEK, ALONG MUCH OF THIS DISTANCE THE VEIN HAS BEEN STOPED OUT TO A WIDTH OF 10 FEET OR MORE, AND IRREGULAR RAISES EXTEND TO CONSIDERABLE DISTANCE ABOVE THE HAULAGE LEVEL.

Comments on development

  • ECON.COM: SECONDARY MINERALS FROM THE ORE HAVE CAUSED CONSIDERABLE PROSPECTING FOR COPPER IN THE VICINITY.

Reference information

Bibliographic references

  • Deposit

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

  • Production

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

General comments

Subject category Comment text
Deposit QUARTZ-PYRITE REPLACEMENT; DIP RANGES FROM 60 - 80 E

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.

External references

Maps centered on this site