Fall Creek Phosphate Deposit

Past Producer in Bonneville county in Idaho, United States with commodities Phosphorus-Phosphates, Uranium
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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10073299
MRDS ID W019309
MAS/MILS ID 0160190054
Record type Site
Current site name Fall Creek Phosphate Deposit
Alternate or previous names E. A. Rex Uranium and Phosphate, Fall Creek Lease Block, Bear Creek Lease Block, Fall Creek Adit

Geographic coordinates

Geographic coordinates: -111.42751, 43.42102 (WGS84)
Elevation 1737
Relative position 5 MI WSW OF SWAN VALLEY

Site location context

Political divisions (FIPS codes)

Bonneville(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Conant Valley(quadrangle 1:24,000 scale)

Palisades(quadrangle 1:100,000 scale)

Driggs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Palisades(hydrologic unit)

Snake Headwaters(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 Bonneville

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 001N 043E 18,17,16,07,08,20 Idaho

Comments on the location information

  • Sec. 21 Also Included In Lease

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Uranium Secondary

Analytical data

Result UP TO 34.3 % P2O5 FROM 1.4 FT SAMPLE

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Phosphoria Formation-Phosphatic Shale, Chert
    Rock description Phosphoria Formation-Phosphatic Shale, Chert
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -111.42751, 43.42102

Economic information

Ore body information

  • Strike N 40 DEG W
    Dip 45 DEG SW
    Thickness 16.28M

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Willow Cr - Caribou District

Land status

Ownership category National Forest
Area name Caribou National Forest

Ownership information

  • Type Operator
    Owner E. A. Rex Mining Co. ( 1966 )

Comments on the workings information

  • Bulldozer Trench

Comments on development

  • 1363.95 Acre Lease ( 1966 )

Reference information

Bibliographic references

  • Deposit

    Smart, R. A., And Others, 1954 , Stratigraphic Sections Of The Phosphoria Formation In Idaho: USGS Circ. 327 , 22 P.

  • Deposit

    Jobin, D. A., And Schroeder, M. L., 1964 , Geology Of The Conant Valley Quadrangle, Bonneville County, Idaho: USGS Mineral Inv. Field Studies Map Mf - 277

  • Deposit

    Service, A. L., 1966 , An Evaluation Of The Western Phosphate Industry And Its Resources, Pt. 3 , Idaho: USBM Rept. Inv. 6801 , 201 P.

  • Deposit

    1954 Recon R. A. Smart And Others, Circ. 329

  • Deposit

    1964 Recon D. A. Jobin And M. L. Schroeder, Map Mf - 277

  • Deposit

    U.S. Bureau Of Mines Report of Invesigation 6801, 1966, No. 1-010764, P. 182.

  • Deposit

    U.S. Bureau Of Mines Open-File Report MLA 8-92, 1992, Sample No. 121: Fig. 3, P. 10; Appendix A, P. 24; Appendix B, P. 26

  • Deposit

    Idaho Bureau Of Mines And Geol. County Report 5, 1961, P. 63.

General comments

Subject category Comment text
Deposit Thickness Above For Entire Phosphatic Shale Member
Deposit See USBM RI 6801, p. 174 (Map) for extent of property; the location of this record is placed on a pit in the SW/4 SW/4 NE/4 Sec. 17. The property includes both the Fall Creek and Bear Creek lease blocks to the southeast and northwest.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1977 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 26-JAN-1993 Rains, Richard U.S. Bureau of Mines

Beyond USGS

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