Mohawk Tin Mine

Prospect in Pennington county in South Dakota, United States with commodities Beryllium, Mica, Tin
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10153195
MAS/MILS ID 0461030022
Record type Site
Current site name Mohawk Tin Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -103.58116, 43.93136 (WGS84)
Elevation 1570
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hill City(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Cheyenne-Spring(hydrologic unit)

Cheyenne(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 Pennington

Commodities

Commodity Importance
Beryllium Critical Tertiary
Mica Tertiary
Tin Critical Tertiary

Materials information

Materials Type of material
Beryl Unknown
Cassiterite Unknown
Muscovite Unknown
Quartz Unknown

Nearby scientific data

Main Entrance (1) -103.58116, 43.93136

Economic information

Ore body information

  • Strike N20W
    Dip 50E
    Length 167M
    Width 0.8M
    Area 1HA
    Field Value
    Type of Orebody #1 PEGMATITE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin MAGMATIC DIFFER
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control IGNEOUS
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N20W:50E
    Total Surface Area (HA) 1
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Both
Significant No
Discovery year 1883

Mining district

District name Hill City District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    GARDNER, E D, 1939, TIN DEPOSITS OF THE BLACK HILLS, SOUTH D

  • Deposit

    USBM IC 7069, P 31-3.

  • Deposit

    HESS, FRANK L, 1909, TIN, TUNGSTEN, AND TANTALUM DEPOSITS OF

  • Deposit

    DAKOTA. USGS BULL 380, P 143-4.

  • Deposit

    PAGE, LINCOLN R, ET AL, 1953, PEGMATITE INVESTIGATIONS, 1942

  • Deposit

    BLACK HILLS, SOUTH DAKOTA. USGS PROF PAPER 247, P 160-2.

  • Deposit

    LINCOLN, FRANCIS C, 1937, THE MINING INDUSTRY OF SOUTH DAKOT

  • Deposit

    SOUTH DAK. SCH OF MINES, BULL 17, P 151.

General comments

Subject category Comment text
Deposit REFER TO FIG 23 (USGS PROF PAPER 247, P,161) FOR PLAN MAP OF WORKINGS AND VEIN AND FIG 8 (IC 7069) FOR CROSS SECTIONAL OF MOHAWK VEIN. CASSITERITE OCCURS IN SHORT SMALL IRREGULAR LENS IN PEGMATIT THE MORE MICAEOUS PARTS MINE WORKINGS CONSIST OF 5 SHAFTS WITH DEPTHS OF 100, 86, 42 2 OF 10 FT DEEP (100-FT AND 42-FT SHAFTS CAVED), 2 CUTS AN 75-FT LONG TRENCH.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Hite, Alan G. U.S. Bureau of Mines

Beyond USGS

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