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Moosehorn Mine

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Copper, Iron
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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 10010826
MRDS ID D004814
Record type Site
Current site name Moosehorn Mine
Related records 10293847

Geographic coordinates

Geographic coordinates: -113.73259, 45.55961 (WGS84)
Elevation 2073
Relative position 15 AIR MILES WSW OF WISDOM

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Isaac Meadows(quadrangle 1:24,000 scale)

Wisdom(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 003S 017W 20 Montana

Comments on the location information

  • SE 1/4 OF NW 1/4 SECTION 20

Commodities

Commodity Importance
Silver Primary
Copper Primary
Iron Tertiary

Materials information

Materials Type of material
Bornite Ore
Specularite Ore
Tetrahedrite Ore
Quartz Gangue

Alteration

  • (Local) Gouge

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Lemhi Group
    Rock description Lemhi Group
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.73259, 45.55961
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults, Trending Ne, 20 Se

Ore body information

  • General form PINCH AND SWELL
    Strike N 83 W
    Dip 82 SW
    Width 0.76M

Controls for ore emplacement

  • Fissure Zone

Economic information about the deposit and operations

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

Mining district

District name Pioneer District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Moosehorn Mining Co.
    Home office Franklin, Id.
    First year 1972

Comments on the production information

  • PRODUCTION FIGURES ARE CONFIDENTIAL

Workings at the site

  • Type of workings Underground
    Length 213.36M
    Overall depth 21.34M

Comments on the workings information

  • 45 DEG, INCLINED SHAFT SUNK TO 70 FT., WITH TWO SHORT LEVELS, AT 50 AND 60 FEET. A CROSSCUT ADIT WAS DRIVEN NORTHWARD SOUTHEAST OF THE SHAFT TO THE VEIN, WHERE A DRIFT WAS DRIVEN WEST 90 FEET TO A FAULT

Comments on development

  • SEVERAL UNPATENTED CLAIMS

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 85, P. 39

  • Deposit

    1972 COMPILE M.B.M.G. BULL. 8

General comments

Subject category Comment text
Deposit BEST ORE WAS IN A FISSURE 35 FEET BELOW SHAFT COLLAR. IN OTHER AREAS THE VEIN PINCHED OUT WITHIN A FEW FEET. VEIN IN ADIT WAS CUT BY FAULT-CONTINUATION NOT FOUND

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-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.

External references

Maps centered on this site