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Little Mountain

Plant in Weber county in Utah, United States with commodities Magnesite, Potassium, Salt, Sodium
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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. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10131019
MAS/MILS ID 0490570007
Record type Site
Current site name Little Mountain
Alternate or previous names Little Mountain Pits, Great Salt Lake Minerals & Chemical

Geographic coordinates

Point of reference Plant
Geographic coordinates: -112.23161, 41.28053 (WGS84)
Elevation 1288
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Weber(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Plain City SW(quadrangle 1:24,000 scale)

Promontory Point(quadrangle 1:100,000 scale)

Brigham City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Great Salt Lake(hydrologic unit)

Great Salt Lake(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Utah Weber

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 006 N 003 W 06 W2SESW Utah

Commodities

Commodity Importance
Magnesite Primary
Potassium Primary
Salt Tertiary
Sodium Tertiary

Nearby scientific data

Plant (1) -112.23161, 41.28053
ListMap

Economic information

Ore body information

  • Area 34000HA
    Field Value
    Total Surface Area (HA) 34000
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Brine Operation
Development status Plant
Commodity type Both
Significant Yes
Discovery year 1888
Mining method Auger Mining - Solution Mining
Year of first production 1970
Plant subcategory Crystallization
Milling method Crystallization

Mining district

District name Fremont Island Area

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Fee Ownership

Land status

Ownership category State

Ownership information

  • Type Operator
    Owner Great Salt Lake Minerals And Chemicals Corp.
    ID 4200205
    Home office Utah
    Year 1995
  • Type Owner
    Owner Harris Chemical
    Interest 100
    Home office New York
    Year 1995

Comments on the ownership information

  • COMPLETE COMPANY NAME: GREAT SALT LAKE (GSL) MINERALS & CHEMICALS COORPORATION. THE PROPERTY AND PLANT WAS SOLD BY GULF RESOURCES AND CHEMICAL CORP. TO GREAT SALT LAKE MINERALS & CHEMICAL CORP., MARCH 1989, FOR $33.4 MILLION ($1.1 MILLION OF TOTAL RECEIVED IN 1990). ADDRESS FOR GREAT SALT LAKE MIN. & CHEM: 765 N, 10500 WEST ST. P. O BOX 1190, OGDEN, UT 84402.

Production statistics

  • Year 1975
    Description Production Of K2s04, Nacl, Na2s04 And 114305 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 114305mt
  • Year 1976
    Description Mgcl2 From Lake Brines. 142991 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 142991mt
  • Year 1977
    Description Only Production Of Potash Is Shown; The 160571 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 160571MT
  • Year 1978
    Description Grade Is 52% K2o. 177807 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 52wt-pct
  • Year 1979
    Description 166014 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 166014mt
  • Year 1980
    Description 183250 Mt K2s04 Produced Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Potassium Potassium 183250mt

Comments on the production information

  • OUTPUT FOR COMMODITIES OTHER THAN K2S04 ARE IN TONNAGES OF EXPECTED SALES. TO PRODUCE 500 MT PER DAY OF K2SO4,OVER 1000 MT/DY OF MGLC2 COULD THEORETICALLY BE PRODUCED. IF IT IS ASSUMMED THAT 10 OF THIS IS SOLD, THE OUTPUT OF THIS COMMODITY WOULD BE 600 MT/DY OF BRINE CONTAINING 35% MGCL2-6H2O. TO INCREASE PRODUCTION OF NACL WOULD REQUIRE ADDITIONAL CAPIITAL EXPENDITURE.
  • ALTHOUGH THE YIELDS OF COMMODITIES OTHER THAN POTASH ARE FAR BELOW 100%, THEIR IONS REMAIN THE PONDS AVAILABLE FOR FUTURE RECOVERY. GRADE OF K2SO4 IS 52% K2O (96.2% OF THEORETICAL) AND THE GRADE OF OTHER PRODUCTS IS ASSUMED TO 100% (EXCEPT FOR MGCL2). GRADE OF 35% MGCL2.6H2O EQUALS 16.39% MGCL2. RECOVERY FOR PB IS ACTUALLY 22.4%; FOR PC, 13.55%; AND FOR PD 9.13%.
  • FIRST PRODUCTION AND SHIPMENTS IN 1970, BUT COMPANY CONSIDERED 1975 TO BE THE FIRST FULL YEAR OF COMMERCIAL PRODUCTION SINCE 1976 SOME KCL BRINE HAS BEEN PURCHASED TO INCREASE THE PRODUCTION OF K2S04. OTHER GEOCHEMICAL REFERS TO CHEMICAL ANALYSES OF THE LAKE BRINE.

Comments on the reserve resource information

  • RESERVES AS OUTLINED IN THE NOV., 1981 IFOC PROPERTY FILE. P5. RESERVES CALCULATED FOR USE IN THE 1983 PROPERTY EVALUATION.

Comments on other economic factors

  • PRESENT ANNUAL PROCESSING CAPACITY IN SHORT TONS REPORTED BY THE COMPANY TO BE: K2SO4 240000, NA2SO4 150000, MGCL2 200000 AND AS MUCH NACL AS CAN BE SOLD.

Reference information

Bibliographic references

  • Deposit

    GWYNN, J. WALLACE & STURM, PAUL A. SOLAR PONDING ADJACENT TO

  • Deposit

    THE GREAT SALT LAKE, UTAH; UGMS BULLETIN 116, PAGES 365

  • Deposit

    THROUGH 376.

  • Deposit

    GULF RESOURCES & CHEMICALS CORP. ANNUAL REPORTS

  • Reserve-Resource

    IFOC, LITTLE MOUNTAIN PROPERTY FILE REPORT, NOV. 1981 P5.

  • Reserve-Resource

    MAFO PROPERTY EVALUATION ETD, MAR., 1983.

  • Reserve-Resource

    STURM, PAUL A. THE GREAT SALT LAKE BRINE SYSTEM; UGMS

  • Reserve-Resource

    BULLETIN 116, PAGES 147 THROUGH 162.

  • Deposit

    BEHRENS, PETER; INDUSTRIAL PROCESSING OF GREAT SALT LAKE

  • Deposit

    BRINES BY GREAT SALT LAKE MINERALS & CHEMICALS CORPORATION

  • Deposit

    GREAT SALT LAKE--A SCIENTIFIC, HISTORICAL AND ECONOMIC

  • Deposit

    OVERVIEW; UTAH GEOLOGICAL AND MINERAL SURVEY, BULLETIN 116

  • Deposit

    1980, PAGES 223 THROUGH 228.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-OCT-96 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 05/21/1982
MSHA mine ID4200205
Mine name (MSHA)Little Mountain Pits And Plant
Current operatorGreat Salt Lake Minerals & Chemicals Corp
Current controller (parent)Gulf USA Corp
Mine typeFacility (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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