Dissett Mine

Past Producer in Granite county in Montana, United States with commodities Phosphorus-Phosphates, Iron, Aluminum
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10019461
MRDS ID DC10526
Record type Site
Current site name Dissett Mine
Alternate or previous names Red Hill

Geographic coordinates

Geographic coordinates: -113.29231, 46.34989 (WGS84)
Elevation 1719
Relative position 1.9 KM N OF PHILIPSBURG

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Philipsburg(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 014W 24 Montana

Comments on the location information

  • SW SLOPE OF RED HILL

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Iron Tertiary
Aluminum Critical Tertiary

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result CRUDE 40% BPL
Result CONCENTRATE 65% BPL
Result 3.01% FE AND AL.

Host and associated rocks

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

Nearby scientific data

(1) -113.29231, 46.34989

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Batholith
Type of structure Local
Structure description Wyman Gulch Synclinephilipsburg Overthrust

Ore body information

  • Thickness 1.34M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Discovery year 1920
Year of last production 1949

Mining district

District name Philipsburg (Granite-Flint Creek) District

Ownership information

  • Type Owner
    Owner James E. Dissett
    Home office Philipsburg, Mt. 59858

Production statistics

  • Year 1948
    Period 1946-1948
    Description Cp_Grade: ^30.0% P205
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 30wt-pct

Comments on the production information

  • SEVERAL CAR LOADS

Comments on the reserve resource information

  • USGS BULL 847D.

Workings at the site

  • Type of workings Underground
    Length 518.16M

Comments on the workings information

  • 1920'S 200 FT INCLINED SHAFT WAS MADE. A CROSSCUT ADIT AT 5700 FT ELEVATION WAS DRIVEN TO DEVELOP THE DEPOSIT. IN1946-1948 THE CROSSCUT WAS EXTENDED 1100 FT, RAISE, STOPES WERE ADDED.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE RETORT MEMBER IS 12-20 FT THICK AND CONSISTS OF INTERBEDDED SHALES AND PHOSPHORITES; THE STRUCTURE DIPS FROM 12 N ON THE NOSE TO 18-36 NW ON THE LIMBS. THE MINING SECTION IS 2.2-4.4 FT THICK AND INCLUDES 2 LAYERS OF PHOSPHORITE SEPARATED BY A SEAM OF CLAYEY PHOSPHATIC SHALE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-OCT-1982 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.