Area A, 5 Thru 11, Stewart Flat

Prospect in Caribou county in Idaho, United States with commodities Fluorine-Fluorite, Phosphorus-Phosphates, REE, Uranium, Vanadium
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10119915
MAS/MILS ID 0160290056
Record type Site
Current site name Area A, 5 Thru 11, Stewart Flat
Alternate or previous names West Limb Georgetown Syncline., Middle Dry Ridge, Dry Ridge Prospect

Geographic coordinates

Point of reference Pit
Geographic coordinates: -111.2239, 42.64852 (WGS84)
Elevation 2560
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stewart Flat(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Caribou-Targhee 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 Idaho Caribou

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 009 S 045 E 08 SENENW Idaho

Commodities

Commodity Importance
Fluorine-Fluorite Critical Tertiary
Phosphorus-Phosphates Primary
REE Critical Tertiary
Uranium Tertiary
Vanadium Critical Tertiary

Materials information

Materials Type of material
Calcite Unknown
Collophane Unknown
Dolomite Unknown
Feldspar Unknown
Limonite Unknown
Muscovite Unknown
Quartz Unknown
Sericite Unknown

Nearby scientific data

Pit (1) -111.2239, 42.64852

Economic information

Ore body information

  • Strike N12W
    Dip 60E
    Thickness 63M
    Length 4988M
    Width 176M
    Depth to top 26M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin OTHER
    Primary Ore Control BEDDING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. NONE
    Strike And Dip N12W:60E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Area 88HA
    Field Value
    Total Surface Area (HA) 88
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant No

Mining district

District name Crow Creek District

Mineral rights holdings

Type of mineral rights Federal Lease

Land status

Ownership category National Forest
Area name Caribou National Forest

Ownership information

  • Type Owner
    Owner U.S. Forest Service
    Year 1975
  • Type Owner-Operator
    Owner Stauffer Chemical Co.
    Year 1975

Reference information

Bibliographic references

  • Deposit

    GARRAND, LEONARD. 1975. PHOSPHATE STUDY OF SE IDAHO FOR U.S.

  • Deposit

    SERVICE, A.L. 1966. BUREAU OF MINES REPORT OF INVESTIGATIONS

  • Deposit

    MANSFIELD, 6.R. 1927. U.S.G.S. PROFESSIONAL PAPER 152.

  • Deposit

    U.S. BUREAU OF MINES FILES, SPOKANE, WASHINGTON.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-JUN-1994 Crockett U.S. Bureau of Mines

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.