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Cowlitz Clay

Prospect in Cowlitz county in Washington, United States with commodities Aluminum, Iron, Silica, Titanium, Water, Free
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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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Reserves and resources
  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 10180398
MAS/MILS ID 0530150002
Record type Site
Current site name Cowlitz Clay
Alternate or previous names Cowlitz High Alumina Clay, Cowlitz Kaolin

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -122.84201, 46.3515 (WGS84)
Elevation 158
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Cowlitz(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Silver Lake(quadrangle 1:24,000 scale)

Mount Saint Helens and Vicinity(quadrangle 1:100,000 scale)

Hoquiam(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Cowlitz(hydrologic unit)

Lower Columbia(hydrologic accounting unit)

Lower Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Washington Cowlitz

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 010 N 001 W 17 C W2 Washington

Commodities

Commodity Importance
Aluminum Critical Tertiary
Iron Tertiary
Silica Tertiary
Titanium Critical Tertiary
Water, Free Tertiary

Materials information

Materials Type of material
Beidellite Unknown
Feldspar Unknown
Gibbsite Unknown
Halloysite Unknown
Hematite Unknown
Ilmenite Unknown
Kaolinite Unknown
Limonite Unknown
Mica Unknown
Montmorillonite Unknown
Nontronite Unknown
Quartz Unknown
Siderite Unknown

Nearby scientific data

Ore Body (1) -122.84201, 46.3515
ListMap

Economic information

Ore body information

  • Strike N30W
    Dip 02E
    Thickness 13M
    Length 5000M
    Width 5000M
    Area 200HA
    Depth to top 20M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Strike And Dip N30W:02E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 200
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1935
Year of first production 1937

Mining district

District name Unorganized District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Pope And Talbot Inc.
    Home office California
    Year 1955
  • Type Owner
    Owner Gladding-Mc Bean And Co.
    Home office California
    Year 1955
  • Type Owner
    Owner Weyerhaeuser Timber Co.
    Home office Washington
    Year 1955
  • Type Owner
    Owner State Of Washington School Land
    Home office Washington
    Year 1955
  • Type Owner
    Owner Cowlitz Holding Co.
    Home office Washington
    Year 1955
  • Type Owner
    Owner John Sides
    Home office Washington
    Year 1955

Reserves and resources

  • Type In-situ
    Estimate year 1955
    Measured 8969000mt ore
    Indicated 1087000mt ore
    Demonstrated 10056000mt ore
    Total resources 10056000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 29.7 wt-pct Aluminum Trace 1955
    Iron Fe2O3 6.3 wt-pct Iron Trace 1955

Comments on the reserve resource information

  • MATRIX TONNAGE AND GRADES WERE DEVELOPED IN HOUSE IN 1975 FROM USBM & USGS DATA. THE WORK WAS PERFORMED IN 1942 AND 1943. TONNAGE AND GRADE FIGURES HAVE BEEN MULTI- PLIED BY THE APPROPRIATE CONVERSIONS TO ACCOUNT FOR METRIC TONNES AND MOISTURE CONTENT

Workings at the site

  • Type of workings Surface
    Area 200HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method STRIP-HILLSIDE
    Swell Factor .72
    Percent Waste Rock 0
    Avg. Overburden Thickness 20
    Primary Material Cover SAND, GRAVEL
    Percentage 2
    Secondary Material Cover HARD ROCKS
    Percentage 3
    Tertiary Material Cover HARDPAN
    Percentage 95
    Hardness of Ore HARDPAN
    Avg. Bench Height (meters) 15
    Max. Pit Slope (degrees) 45
    Capacity 7862
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 453
    Unit Production Cost 3.11
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1979

Reference information

Bibliographic references

  • Deposit

    ALLEN, V.T. SEDIMENTARY AND VOLCANIC PROCESSES IN THE

  • Deposit

    FORMATION OF HIGH-ALUMINA CLAY. ECON. GEOL., V. 41, NO.

  • Deposit

    2. 1946, PP. 124-138.

  • Deposit

    GLOVER, S.L. CLAYS AND SHALES OF WASHINGTON. WASHINGTON

  • Deposit

    DIV. GEOL. BULL. 24, 1941, 368 PP.

  • Deposit

    HOLBROOK, W.F. AND L.A. YERKES. EXTRACTION OF ALUMINA FROM

  • Deposit

    FERRUGINOUS-BAUXITE BY A DOUBLE-LEACH PROCESS.

  • Deposit

    BUMINES REPT. OF INV. 6280, 1963, 20 PP.

  • Deposit

    PARKMAN, H.C. SULPHURIC ACID LEACHING OF WASHINGTON CLAYS

  • Deposit

    FOR THE PRODUCTION OF ALUMINA AND ALUMINUM METAL. THE

  • Deposit

    STATE COLLEGE OF WASHINGTON, SCH. MINES AND GEOL. BULL.

  • Deposit

    E, 1935, 51 PP.

  • Deposit

    POPOFF, C.C. COWLITZ CLAY DEPOSITS NEAR CASTLE ROCK, WASH.

  • Deposit

    BUMINES REPT. OF INV. 5157, 1955, 60 PP.

  • Deposit

    REDLICH, O., M.F. ADAMS, AND R.O. DHONDT. EXTRACTION OF

  • Deposit

    ALUMINA FROM CLAY (IN THREE PARTS). PART III. BENEFI-

  • Deposit

    CIATION OF CLAY BY AIR SEPARATION. THE STATE COLLEGE OF

  • Deposit

    WASHINGTON, DEPT. CHEM. AND CHEM. ENG. RES. PROJECT 34.

  • Deposit

    BULL. T-3, 1943, 10 PP.

  • Deposit

    ROBERTS, A.E. GEOLOGY AND COAL RESOURCES OF THE

  • Deposit

    TOLEDO-CASTLE ROCK DISTRICT, COWLITZ AND LEWIS

  • Deposit

    COUNTIES, WASH. U.S. GEOLOGICAL SURVEY BULL. 1062, 1958, 71 PP.

  • Deposit

    SEYFRIED, W.R. THE AMMONIUM SULPHATE PROCESS FOR THE

  • Deposit

    EXTRACTION OF ALUMINA FROM CLAY AND ITS APPLICATION IN

  • Deposit

    A PLANT AT SALEM, OREGON. AIME TECH. PAPER 2473, 1948,

  • Deposit

    12 PP.

  • Deposit

    SNOEBERGER, D., AND J. WEGNER. PROCESS DEVELOPMENT FOR

  • Deposit

    PRODUCTION OF ALUMINUM SULFATE BY SULFITE-SULFATE

  • Deposit

    LEACHING PROCESS FROM CASTLE ROCK CLAY. SPOKANE

  • Deposit

    ALUMINUM CO., 1946, 16 PP.

  • Deposit

    WEAVER, C.E. THE TERTIARY FORMATIONS OF WESTERN WASHINGTON.

  • Deposit

    WASHINGTON GEOLOGICAL SURVEY BULL. 13, 1916, 327 PP.

General comments

Subject category Comment text
Deposit THERE ARE THREE SETS OF COSTS; COSTS ORIGINALLY ENTERED IN 1975, COSTS UPDATED FROM 1975 TO 1979, AND COMPLETELY RECOSTED 1979 COSTS. ALL COSTS ARE ASSUMED TO BE MIDYEAR. DEPOSIT LIFE IS 70 YEARS AT A PRODUCTION RATE OF 1965000 TONNES PER YEAR. THE MILL CAPACITY CAN BE INCREASED TO SHORTEN THE LIFE; OR OTHER MILLS CAN BE ADDED SUBSEQUENTLY OR CONCURRENTLY AND OPERATED FOR 25 AND 20 YEARS; RESPECTIVELY; IN ADDITION TO THE CURRENT MILL WHICH WOULD OPERATE FOR 25 YEARS.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-OCT-92 Lindsey, David S. 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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