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  3. Mineral Resource Data System (MRDS)

Shamrock Mine

Past Producer in Granite county in Montana, United States with commodities Gold, Copper, Lead, Antimony, Barium-Barite
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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. 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 10019707
MRDS ID DC11190
Record type Site
Current site name Shamrock Mine

Geographic coordinates

Geographic coordinates: -113.34315, 46.82711 (WGS84)
Location accuracy 250(meters)
Relative position E SIDE OF WILLIAMS GULCH, OPPOSITE THE DEWEY, .2 Km Radius, .2 Km Radius

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elevation Mountain(quadrangle 1:24,000 scale)

Missoula East(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(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 Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 012N 014W 03 CENTER OF N2 Montana

Commodities

Commodity Importance
Gold Primary
Copper Secondary
Lead Secondary
Antimony Critical Tertiary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Tetrahedrite Ore
Barite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Garnet Stock
    Rock description Garnet Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -113.34315, 46.82711
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Bearmouth Overthrust
Type of structure Local
Structure description Deep Creek Anticline, Garnet Stock

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1867
Production years PRE-1916.

Mining district

District name Garnet (First Chance) District

Comments on the production information

  • GT $100000 IS REPORTED

Workings at the site

  • Type of workings Surface/Underground
    Length 365.76M
    Overall depth 106.68M

Comments on the workings information

  • 350 FT INCLINE, 6 LEVELS

Comments on development

  • CLOSED IN 1916

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE SIMALAR TO DEWEY0 A BRANCHING VEIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-APR-81 Wise, Kristine K. (Elliott, James E.) 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