Wilson Gulch Prospect

Past Producer in Mineral county in Montana, United States with commodity Fluorine-Fluorite
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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10019733
MRDS ID DC11302
Record type Site
Current site name Wilson Gulch Prospect

Geographic coordinates

Geographic coordinates: -115.08182, 47.17238 (WGS84)
Elevation 1585
Relative position 4.3 MI NE OF LOST PK.

Site location context

Political divisions (FIPS codes)

Mineral(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wilson Gulch(quadrangle 1:24,000 scale)

Wallace(quadrangle 1:100,000 scale)

Wallace(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Lolo 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 Mineral

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 016N 028W 01 Montana

Comments on the location information

  • IN WILSON GULCH, ABOUT 1.5 MI S. OF ITS JUNCTION WITH DRY CREEK.

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore
Ankerite Gangue
Calcite Gangue
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -115.08182, 47.17238

Economic information

Geologic structures

Type of structure Local
Structure description Much Tight Folding Accompanied By Some Shearing Is Evident Throughout A Belt Several Hundred Feet Wide Which Trends N 10 - 20 Deg W. Narrow Zones Of Shearing, Which Are Apparently Discontinuous And Perhaps Have An Echelon Orientation, Have Sheeted And Brecciated The Rocks Without Much Differential Movement.

Controls for ore emplacement

  • Zone Of Brecciation

Comments on the geologic information

  • MOST OF THE BRECCIATED ROCK HAS BEEN CEMENTED BY ANKERITE. ; GEOL.DESC: 5 FT WIDE, 60 FT LONG, 30% FLUORITE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1944

Land status

Ownership category National Forest

Comments on the production information

  • BEAR CREEK AND WILSON GULCH PROSPECTS PRODUCED A TOTAL OF 781 TONS OF HANDSORTED FLUORSPAR BETWEEN 1948 AND 1950 .

Comments on the reserve resource information

  • SMALL RESERVES OF SHIPPING GRADE ORE WERE IN SIGHT, DURING A LATE 1950'S EXAMINATION

Comments on the workings information

  • WORKINGS CONSIST OF SEVERAL SURFACE TRENCHES ON A HILLSIDE. THE LARGEST CUT IS ABOUT 60 FT LONG, 40 FT WIDE AND 30 FT HIGH.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit IRREGULAR MASSES OF CALCITE HAVE REPLACED THE COUNTRY ROCK AND IN TURN HAVE BEEN REPLACED BY FLUORITE. LOCALLY THE REPLACEMENT EXTENDS INTO THE LIMY OR DOLOMITIC ROCKS.
Deposit BECAUSE OF THE SMALL SIZE OF THE ORE BODY AND THE COST OF MINING, HAND SORTING AND SHIPPING, A MINING OPERATION WOULD BE MARGINAL AT BEST. ALL OF THE FLUORSPAR PROSPECTS IN THE AREA ARE CONFINED TO A ZONE NEAR THE SOUTHERN END OF THE BELT OF BRECCIATION. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JUL-1979 Rojstaczer, Stuart A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.