Lost Creek Mine

Past Producer in Beaverhead county in Montana, United States with commodities Tungsten, Molybdenum
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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10042778
MRDS ID M060801
Record type Site
Current site name Lost Creek Mine

Geographic coordinates

Geographic coordinates: -112.8045, 45.48712 (WGS84)
Elevation 2103
Relative position 5.7 MILES W. OF GLEN, MONTANA

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twin Adams Mountain(quadrangle 1:24,000 scale)

Dillon(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 004S 010W 14 Montana

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Secondary

Materials information

Materials Type of material
Molybdenite Ore
Powellite Ore
Scheelite Ore
Diopside Gangue
Epidote Gangue

Analytical data

Result RICHEST ORE AVERAGES 0.3% WO3
Result MUCH OF "ORE" AVERAGES LESS, ALSO 0.15% MO

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Pioneer Batholith
    Rock description Pioneer Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Amsden Formation-Limestone, Shale, Dolomite;Quadrant;Phosphoria
    Rock description Amsden Formation-Limestone, Shale, Dolomite;Quadrant;Phosphoria

Nearby scientific data

(1) -112.8045, 45.48712

Economic information

Geologic structures

Type of structure Local
Structure description North Trending, Steeply Dipping Faults Cut Tactite Zone

Ore body information

  • General form IRREGULAR
    Length 304.8M
    Width 21.34M

Controls for ore emplacement

  • Contact Between Amsden Formation And Quartz Monzonite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1915
Discoverer A German Engineer

Mining district

District name Lost Creek District

Ownership information

  • Type Operator
    Owner Minerals Engineering Co.

Production statistics

  • Year 1956
    Period 1952-1956
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.18% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Ore Tungsten Tungsten 0wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Length 457.2M
    Overall depth 60.96M

Comments on development

  • ECON.COM: MUCH FAULTED GROUND REQUIRES TIMBERING, LOW GRADE ORE NEEDS BENEFICIATION

Reference information

Bibliographic references

  • Deposit

    USGS MR-25

  • Deposit

    USBM RI 5552.

  • Production

    DMEA FILES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Puffett, Willard P. U.S. Geological Survey
Updater 01-MAR-1983 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.