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  3. Mineral Resource Data System (MRDS)

Small Horn Canyon Area

Prospect in Beaverhead county in Montana, United States with commodities Chromium, Fluorine-Fluorite, Nickel, Phosphorus-Phosphates, REE, Uranium, Vanadium
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10123596
MAS/MILS ID 0300010544
Record type Site
Current site name Small Horn Canyon Area

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.67258, 45.0613 (WGS84)
Elevation 1950
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gallagher Mountain(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 009 S 009 W 11 Montana

Commodities

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

Economic information

Ore body information

  • Thickness 1M
    Depth to top 5M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Thickness 5M
    Depth to top 5M
    Field Value
    MAS Matrix # 2
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316

Economic information about the deposit and operations

Development status Prospect
Commodity type Both
Significant No

Mineral rights holdings

Type of mineral rights Federal Lease

Land status

Ownership category Federal

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Inferred 9071800mt ore
    Total resources 11339000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 26 wt-pct Phosphorus Major 1970
    Fluorine-Fluorite F 2.6 wt-pct Fluorine Trace 1970
    Uranium U 0.0039 wt-pct Uranium Trace 1970
  • Type In-situ
    Estimate year 1970
    Inferred 63502000mt ore
    Total resources 78017000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 20.5 wt-pct Phosphorus Major 1970
    Fluorine-Fluorite F 2.05 wt-pct Fluorine Trace 1970
    Uranium U 0.0039 wt-pct Uranium Trace 1970

Comments on the reserve resource information

  • M1 C3 RETORT MEMBER: Q50; RESOURCE BLOCK ABOVE ENTRY LEVEL, BED AREA 4310560 SQUARE METERS; Q25, RESOURCE BLOCK ABOVE FIRST 30M BELOW ENTRY LEVEL, BED AREA 5239560 SQUARE METERS; Q10, RESOURCE BLOCK, TOTAL IN AREA, BED AREA 39482500 SQUARE METERS. M2 C3 RETORT MEMBER

Reference information

Bibliographic references

  • Reserve-Resource

    SWANSON, ROGER, 1970, MINERAL RESOURCES IN PERMIAN ROCKS OF

  • Reserve-Resource

    SOUTHWEST MONTANA, USGS PROF. PAPER 313-E, P. 661-777.

General comments

Subject category Comment text
Deposit THIS RECORD IS FOR A LARGE AREA COVERING THE PHOSPHATE MINERALIZATION OF SMALL HORN CANYON AREA. THUS IT INCLUDES SECS 28, 32,33,34,35 IN T8S R 9W; AND SECS. 4,9,11,12,13,14, 16,17,18,19,20,22,23,24,27 IN T9S R 9W. DEPOSIT SEQ NO. 0300010442 IS LOCATED IN THIS AREA. APATITE OCCURES AS OOLITIC TO PELLETAL GRAINS THAT ARE VERY FINE TO MEDIUM SAND SIZE, NODULES ARE LOCALLY COMMON.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Benjamin U.S. Bureau of Mines

Beyond USGS

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

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