Beaverhead Rock-Hogback Area

Occurrence in Madison county in Montana, United States with commodities Chromium, Fluorine-Fluorite, Nickel, 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Land status
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10269946
MAS/MILS ID 0300570845
Record type Site
Current site name Beaverhead Rock-Hogback Area
Alternate or previous names Beaver Phosphate

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.51058, 45.491 (WGS84)
Elevation 1676
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Madison(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Block Mountain(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Madison

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 004 S 007 W 18 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

Nearby scientific data

Ore Body (1) -112.51058, 45.491

Economic information

Ore body information

  • Thickness 3M
    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

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Significant No

Land status

Ownership category BLM Administrative Area

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Inferred 9071800mt ore
    Total resources 18143000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 20 wt-pct Phosphorus Major 1979
    Fluorine-Fluorite F 2 wt-pct Fluorine Trace 1979
    Uranium U 0.006 wt-pct Uranium Trace 1979

Comments on the reserve resource information

  • M1 C3 RETROT MEMBER: Q50; RESOURCE BLOCK ABOVE ENTRY LEVEL, 1059050 SQUARE METERS; Q25; RESOURCE BLOCK ABOVE FIRST 30M BELOW ENTRY LEVEL, BED AREA 2229600 SQUARE METERS; Q10; RESOURCE BLOCK, TOTAL IN AREA, BED AREA 109436200 SQUARE METERS

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 IN AN ARC EXTENDING FROM BEAVERHEAD ROCK TO THE MCCARTHY MOUNTAIN AREA. THUS IT INCLUDES SECS 7,18, 17,20,28,29,33 IN T4S R7W; AND SECS 4,9,16,21,28 IN T5S R7W 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 03-MAR-98 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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