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Elkhorn Group

Past Producer in Jefferson county in Washington, United States with commodities Manganese, Iron
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10047953
MRDS ID M700320
Record type Site
Current site name Elkhorn Group
Alternate or previous names Karnes Group

Geographic coordinates

Geographic coordinates: -123.01181, 47.73924 (WGS84)
Elevation 1021
Location accuracy 1000(meters)
Relative position ABOUT 3.5 MI NORTHEAST OF MT. JUPITER LOOKOUT., Estimated In Northeast Corner Of Quadrangle Across Dosewallips River From Mt. Jupiter

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Jupiter(quadrangle 1:24,000 scale)

Mount Olympus(quadrangle 1:100,000 scale)

Seattle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hood Canal(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Olympic National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 026N 004W 13,24 Washington

Comments on the location information

  • UNSURVEYED. ON STEEP SOUTH SLOPE OF MOUNT CONSTANCE. DERKEY AND OTHERS (1990) INDICATE LOCATION AS R. 3 W., NOT R. 4 W. THE CLAIMS ARE BOUNDED BY BULL ELK CREEK ON THE WEST, MINER'S CREEK ON THE EAST, AND THE DOSEWALLIPS RIVER ON THE SOUTH. THE PROPERTY IS REACHED FROM BRINNON ON W.S. HIGHWAY 101 BY FOLLOWING THE ROAD ALONG THE DOSEWALLIPS RIVER WESTERLY FOR ABOUT 13 MI. MAIN WORKINGS RANGE IN ELEVATION FROM 1,200-4,200 FT. PROPERTY CONSISTS OF 28 UNPATENTED CLAIMS

Commodities

Commodity Importance
Manganese Critical Primary
Iron Tertiary

Materials information

Materials Type of material
Bementite Ore
Hematite Ore
Jasper Gangue

Alteration

  • (Local) Basalt Is Spilitized

Analytical data

Result SEVERAL SAMPLES FROM VARIOUS PARTS OF ORE BODY RAN 4.95-35.2% MN. THE RICHEST MN SAMPLE CONTAINED ALSO 6.9% FE, 2.11% SIO2 (MAGILL). OTHER ANALYSES YIELDED 23.4-26.4% MN, 4.3-18% FE, 23.4-39.1% SIO2, 6.9-12.3% CAO (HUNTTING)

Mineral occurrence model information

Model code 100
USGS model code 24c.3
Deposit model name Volcanogenic Mn, Olympic Peninsula

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Crescent Formation;Crescent Formation
    Rock description Crescent Formation;Crescent Formation

Nearby scientific data

(1) -123.01181, 47.73924
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Basalt Is Highly Fractured And Cut By Many Minor Faults

Ore body information

  • General form LENSES, PODS, PINCH AND SWELL
    Strike NORTH
    Dip 40-55E
    Thickness 7.62M
    Length 30.48M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1945

Mining district

District name Dosewallips River Area

Land status

Ownership category National Forest
Area name In Olympic National Forest

Ownership information

  • Type Operator
    Owner American Manganese Corp.
    Home office Seattle, Wa
    First year 1951
  • Type Owner
    Owner American Manganese Corp.
    Home office Seattle, Wa

Comments on the production information

  • SMALL PRODUCTION IN THE 1940'S

Comments on the workings information

  • 27 FT ADIT, OPENCUTS, TRENCHES

Reference information

Bibliographic references

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, P. 259.

  • Deposit

    MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OLYMPIC PENINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATINS 5530, P. 55-57, 76.

  • Deposit

    DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 104.

  • Production

    DERKEY AND OTHERS, 1990

General comments

Subject category Comment text
Deposit 3 LIMESTONE BEDS IN BASALT CONTAIN LENSES OF MN ORE, SOME TO 25 FT THICK.
Deposit SEE ALSO MRDS RECORD M700321

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-82 Lawson, William A. (Evarts, Russell C.) U.S. Geological Survey
Updater 01-NOV-92 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

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