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  3. Mineral Resource Data System (MRDS)

Lannigan Mountain Area

Occurrence in Lewis and Clark county in Montana, United States with commodities Barium-Barite, Copper, Silica
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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. Economic information about the deposit and operations
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10010514
MRDS ID D004258
Record type Site
Current site name Lannigan Mountain Area

Geographic coordinates

Geographic coordinates: -112.20256, 47.0699 (WGS84)
Elevation 1372
Relative position 30 MI. SSW OF AUGUSTA

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Roberts Mountain(quadrangle 1:24,000 scale)

Dearborn River(quadrangle 1:100,000 scale)

Choteau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri-Dearborn(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 015N 005W 10,11 Montana

Comments on the location information

  • VEINS IN SW 1/4 SECT. 10 AND IN SECT. 11,

Commodities

Commodity Importance
Barium-Barite Critical Tertiary
Copper Tertiary
Silica Tertiary

Materials information

Materials Type of material
Barite Ore
Bornite Ore
Chalcopyrite Ore
Malachite Ore
Quartz Ore
Limonite Gangue
Pyrite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Grayson Shale;Spokane Formation;Empire Formation
    Rock description Grayson Shale;Spokane Formation;Empire Formation
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -112.20256, 47.0699
ListMap

Economic information

Ore body information

  • Thickness 1.83M
    Length 1609.3M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Significant No

Land status

Ownership category Private

Comments on the workings information

  • WORKINGS CONSIST OF PROSPECT PITS SUNK ALONG QUARTZ VEINS

Reference information

Bibliographic references

  • Deposit

    SCHMIDT, ROGER G., 1979, ROCKS AND MINERAL RESOURCES OF THE WOLF CREEK AREA, LEWIS AND CLARK AND CASCADE COUNTIES, MONTANA: USGS BULL. 1441, P. 66, 81

  • Deposit

    SCHMIDT, ROGER G., AND STRONG, CEYLON P. JR., 1972, GEOLOGIC MAP OF THE ROBERTS MOUNTAIN QUADRANGLE: USGS MAP GQ977

  • Deposit

    1966 RECON R.G. SCHMIDT: BULL. 1441

  • Deposit

    1972 GEOLMAP R.G. SCHMIDT, C.P. STRONG: MAP GQ977

General comments

Subject category Comment text
Deposit DEPOSIT IN THE FORM OF QUARTZ VEINS; WHITE QUARTZ, QUARTZ AND CRUSHED ARGILLITE, OR QUARTZ, BARITE, AND COPPER MINERALS. ONE LARGE VEIN DEVOID OF BARITE OR DISSEMINATED SULFIDES COMMONLY STANDS SEVERAL FEET ABOVE THE SURROUNDING GROUND SURFACE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Starritt, Bruce C. U.S. Geological Survey

Beyond USGS

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

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