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  3. Mineral Resource Data System (MRDS)

Stanfield Prospect

Occurrence in Beaverhead county in Montana, United States with commodity Tungsten
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10019835
MRDS ID DC11671
Record type Site
Current site name Stanfield Prospect

Geographic coordinates

Geographic coordinates: -112.82756, 45.38879 (WGS84)
Elevation 1951
Relative position 3/4 MI. SW OF INDIAN QUEEN MINE

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 005S 010W 22 CENTER OF NW Montana

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore

Analytical data

Result CHIP SAMPLES OF TACTITE ASSAYED 0.02 TO 0.21 % WO3.

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) Mississippian
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Mission Canyon
    Rock description Mission Canyon

Nearby scientific data

(1) -112.82756, 45.38879
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description East Flank-Humbolt Mtn. Anticline, Pioneer Batholith

Ore body information

  • General form QUARTZ VEINLETS
    Strike N 47 W
    Dip 67E

Comments on the geologic information

  • GEOL.DESC: ON E. MARGIN OF MT. TORREY BATHOLITH AT CONTACT WITH MISSION CANYON LS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Birch Creek (Utopia) District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Stanfield Brothers
    Home office Dillon
    First year 1960

Workings at the site

  • Type of workings Surface/Underground
    Overall length 152.4M
    Overall width 60.96M

Comments on the workings information

  • 2 EARLY ADITS, ONE SHAFT, ABOUT 7 TRENCHES, AND ON OPEN PIT.

Comments on development

  • 2 ADITS WERE DRIVEN ABOUT 1903 TO EXPLORE FOR COPPER. IN 1954-55 THE PROPERTY WAS DEVELOPED FOR TUNGSTEN WITH A MILL, PIT, AND BULLDOZER TRENCHES.

Reference information

Bibliographic references

  • Deposit

    USBM RI 5552, P. 24-28

  • Deposit

    1960 RECON U.S. BUREAU OF MINES, R.I. 555

General comments

Subject category Comment text
Deposit TACTITE IS INTERMITTENTLY EXPOSED FOR 1,850 FT., AVERAGING 120 FEET WIDE. VEINS TREND GENERALLY NE TO NW.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JUL-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.

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