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  3. Mineral Resource Data System (MRDS)

Little Hawk Mine

Producer in Beaverhead county in Montana, United States with commodities Tungsten, 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10010757
MRDS ID D004713
Record type Site
Current site name Little Hawk Mine
Alternate or previous names Bartholdi ?

Geographic coordinates

Geographic coordinates: -113.05422, 45.31933 (WGS84)
Elevation 2420
Relative position 4.5 AIR MILES SE OF POLARIS

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Polaris(quadrangle 1:24,000 scale)

Salmon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006S 012W 15 Montana

Comments on the location information

  • NE 1/4, NE 1/4, SECTION 15.

Commodities

Commodity Importance
Tungsten Critical Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Powellite Ore
Scheelite Ore
Magnetite Gangue

Alteration

  • (Local) Skarn

Analytical data

Result SAMPLES ASSAYED FROM NIL TO 0.188% WO3.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Pioneer Batholith
    Rock description Pioneer Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Madison
    Rock description Madison

Nearby scientific data

(1) -113.05422, 45.31933
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description N60e, 60 Se Trending Faults, Pioneer Batholith

Ore body information

  • Strike N 40 W
    Dip 30 SW
    Length 57.91M
    Width 21.34M
    Depth to top 0M

Controls for ore emplacement

  • Tactite Bodies Cut Into Segments By Faults.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1955

Mining district

District name Baldy Mountain District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Little Hawk Mining Co.
    Home office St. Louis, Mo.
    First year 1960

Comments on the production information

  • A SMALL AMOUNT OF CONCENTRATES WAS PRODUCED DURING MILL TESTS.

Workings at the site

  • Type of workings Unknown
    Length 9.14M
    Overall length 182.88M
    Overall width 45.72M

Comments on the workings information

  • OPEN PIT, 30-FT INCLINED SHAFT THAT BEARS WEST AT THE SE END OF PIT.

Comments on development

  • COPPER DISCOVERED IN EARLY 1890'S. SOME EXPLORATION WORK COMPLETED. TUNGSTEN DISCOVERED 1951. 150-TON MILL AND STORAGE DAMS BUILT 1955. 1 PATENTED, 6 UNPATENTED CLAIMS

Reference information

Bibliographic references

  • Deposit

    USBM RI 5552, P. 32-34

  • Deposit

    1960 RECON U.S. BUREAU OF MINES, R.I., 555

  • Production

    U.S.B.M., R.I. 5552

General comments

Subject category Comment text
Deposit MAIN TACTITE BODY IS IN NW END OF PIT. SMALLER BODIES (100X20 FT) EXTEND TO THE SE END OF PIT ALONG A NW-SE TREND. MAIN TACTITE IS TERMINATED BY NE FAULT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) 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