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Sawmill Gulch Phosphate Deposit

Occurrence in Powell county in Montana, United States with commodity Phosphorus-Phosphates
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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. Alteration
  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. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10019343
MRDS ID DC09596
Record type Site
Current site name Sawmill Gulch Phosphate Deposit

Geographic coordinates

Geographic coordinates: -112.38033, 46.58323 (WGS84)
Location accuracy 1000(meters)
Relative position AREA STARTS ABOUT 1.0 KM NE OF ELLISTON. IT CONTINUES FOR ABOUT 6 KM NE.

Site location context

Political divisions (FIPS codes)

Powell(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elliston(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(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

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Montana Powell

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 010N 006W 20,29,31,32 Montana

Comments on the location information

  • LAT LONG ARE CENTRAL FOR THE AREA.

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Alteration

  • (Local) Metamorphic

Analytical data

Result 26.6% P205

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite
    Rock unit name Phosphoria Formation (Retort Member)
    Rock description Phosphoria Formation (Retort Member)
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -112.38033, 46.58323
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Dunkleberg Anticline
Type of structure Local
Structure description Ellistone Anticline

Ore body information

  • Thickness 0.64M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner Silica Products Co.
    Home office Tacoma, Wa .

Comments on the reserve resource information

  • NEAR SURFACE

Comments on the workings information

  • CROSSCUT ADIT

Comments on development

  • 1930'S NORTHWEST IMPROVEMENT CO. PUT IN A CROSSCUT ADIT. POST 1945 THE SILICA PRODUCTS CO. LEASED THE PROPERTY. IN1955 WORK STOPPED AND THE LEASE LAPSED.

Reference information

Bibliographic references

  • Deposit

    USGS FILES

  • Deposit

    USGS, GEOL. MAP OF MONT.

  • Deposit

    USBM RI 6611, P. 48, 49, 50.

  • Deposit

    CONSV. DIV. COMP. DATE, 01-11-1962

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-NOV-82 Wise, Kristine K. (Elliott, James E.) 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