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  3. Mineral Resource Data System (MRDS)

Pentfield Lode

Prospect in Silver Bow county in Montana, United States with commodity Molybdenum
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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. Mining district
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10022820
MRDS ID FS00308
Record type Site
Current site name Pentfield Lode

Geographic coordinates

Geographic coordinates: -112.44755, 45.85712 (WGS84)
Elevation 1999
Relative position 1/2 MILE NW OF PIPESTONE PASS

Site location context

Political divisions (FIPS codes)

Silver Bow(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pipestone Pass(quadrangle 1:24,000 scale)

Butte South(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(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 Silver Bow

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 001N 007W 03,11,10 Montana

Comments on the location information

  • ONE OF A GROUP

Commodities

Commodity Importance
Molybdenum Primary

Comments on the commodity information

  • APPARENTLY, LARGE QUANTITIES OF MO ORE HAS BEEN MINED FROM THIS SHAFT

Materials information

Materials Type of material
Molybdenite Ore
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Boulder Batholith, Qtz Monzonite
    Rock description Boulder Batholith, Qtz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.44755, 45.85712
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1921
Discoverer R. T. Ogle

Mining district

District name Summit Valley District

Ownership information

  • Type Owner
    Owner R. T. Ogle

Workings at the site

  • Type of workings Underground
    Length 84.12M

Comments on the workings information

  • THE TUNNEL ALSO HAS AN 8 FT CROSSCUT AND AN 18 FT RAISE. MOST OF THE ORE HAD BEEN TAKEN FROM THIS RAISE

Reference information

Bibliographic references

  • Deposit

    1934 DIREXPL DEPT. OF INTERIOR

  • Deposit

    1949 DIREXPL USFS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Steward, Candis A. U.S. Geological Survey
Updater 01-FEB-1985 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