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Sweden Mine

Past Producer in Skamania county in Washington, United States with commodities Copper, Gold, Silver, Zinc
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10047861
MRDS ID M700192
Record type Site
Current site name Sweden Mine
Alternate or previous names Coe Mine, St. Helens Mine, Norway-Sweden Group
Related records 10047855, 10056095, 10253886

Geographic coordinates

Geographic coordinates: -122.1123, 46.29675 (WGS84)
Elevation 1018
Relative position 6 MI NORTHWEST OF MOUNT ST. HELENS AT MOUTH OF PARADISE VALLEY

Site location context

Political divisions (FIPS codes)

Skamania(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Spirit Lake East(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)

Federal lands

Gifford Pinchot 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 Skamania

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 009N 006E 06 NW4 OF NE4 Washington

Comments on the location information

  • BELOW LEVEL OF SPIRIT LAKE SUBSEQUENT TO 1980 ERUPTION OF MOUNT ST. HELENS. PROPERTY CONTAINS 8 CLAIMS

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Critical Tertiary

Comments on the commodity information

  • METAL VALUES ARE HIGHLY VARIABLE ALONG STRIKE OF VEIN

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Quartz Gangue
Talc Gangue

Analytical data

Result WEIGHTED AVERAGE OF 4 SAMPLES: 2.8% CU ACROSS A 3.2 FT THICKNESS. WEIGHTED AVERAGE OF 5 SAMPLES AT DIFFERENT LOCALITY 3.21% CU ACROSS A 4.2 FT THICKNESS. NUMEROUS ASSAYS RAN 0.02-14.2% CU, TR-0.61 OZ/TON AU, NIL-3.80 OZ/TON AG. 12 USBM SAMPLES SHOWED 0.02-8.9% CU, TR AU, NIL-0.64 OZ/TON AG.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Spirit Lake Pluton
    Rock description Spirit Lake Pluton
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -122.1123, 46.29675
ListMap

Economic information

Ore body information

  • General form VEIN
    Strike N10-20W
    Dip 70-90SW
    Thickness 10.06M
    Length 914.4M

Controls for ore emplacement

  • Fracture Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1896
Year of first production 1905
Year of last production 1928

Mining district

District name St. Helens District - Spirit Lake Area

Land status

Ownership category National Monument
Area name In Mount St. Helens National Volcanic Monument In Gifford Pinchot National Forest

Ownership information

  • Type Operator
    Owner New Cinch Uranium, Ltd., Toronto
    First year 1976
  • Type Owner
    Owner Mount St. Helens Consolidated Mining Co.
    First year 1905
    Last year 1943

Production statistics

  • Year 1905
    Material ORE CU
    Accuracy Accurate
    Description Ap_Grade: ^Average 6.6% Cu, $286
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 7wt-pct

Comments on the production information

  • 2 CARLOADS OF ORE SHIPPED IN 1928. MOEN CITED 76 TONS OF PRODUCTION FOR BOTH 1927 AND 1929; HOWEVER, FROM THE WAY THE TEXT READS, IT APPEARS AS IF THIS REFERS TO THE SAME PRODUCTION AND POSSIBLY THE YEAR WAS MISTYPED IN THE TEXT

Reserves and resources

  • Type In-situ
    Estimate year 1910
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 5.65 wt-pct Copper Major 1910
  • Type In-situ
    Estimate year 1956
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.41 wt-pct Copper Major 1956

Comments on the reserve resource information

  • MOEN GIVES FURTHER DETAILS ABOUT RESERVE CALCULATIONS

Workings at the site

  • Type of workings Underground
    Length 782.12M

Comments on the workings information

  • 2291 FT ADIT WITH 142 FT, 127 FT, AND 6 FT CROSSCUTS. THIS IS THE LONGEST ADIT IN SOUTHWESTERN WASHINGTON

Comments on development

  • ONE OF A GROUP OF 29 CLAIMS PATENTED BY DR. H. W. COE IN 1905. BETWEEN 1900 AND 1910, MOUNT ST. HELENS CONSOLIDATED MINING CO. SPENT ABOUT $700,000 IN AN ATTEMPT TO MAKE THE SWEDEN A COPPER PRODUCING MINE.

Reference information

Bibliographic references

  • Deposit

    HUNTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 78.

  • Deposit

    LANDES, HENRY, THYNG, W.S., LYON, D.A., ROBERTS, MILNOR, 1902, THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON: WASHINGTON GEOLOGICAL SURVEY ANNUAL REPORT FOR 1901, V. I, PT. 2, P. 132-133.

  • Deposit

    MOEN, W.S., 1977, ST. HELENS AND WASHOUGAL MINING DISTRICTS OF THE SOUTHERN CASCADES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 60, P. 17, 33-37.

  • 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. 340.

  • Production

    MOEN, (1977), HUNTING, (1956)

General comments

Subject category Comment text
Deposit MINE IS IN THE AREA THAT WAS DEVASTATED DURING THE 1980 ERUPTION OF MOUNT ST. HELENS ; INFO.SRC : 1 PUB LIT
Deposit DIMENSIONS ARE THOSE GIVEN BY LANDES AND OTHERS. FRACTURE ZONE IN GRANODIORITE, SEVERAL INCHES TO 6 FT THICK, CONSISTS OF GOUGE, TALC, GRANODIORITE FRAGMENTS, AND QUARTZ. IN INDIVIDUAL SHOOTS, PYRITE AND CHALCOPYRITE ARE THE PREDOMINANT ORE MINERALS, DISSEMINATED IN THE VEIN. VEIN CONTAINS 7 MAIN ORE SHOOTS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1981 Caress, Mary E. (Evarts, Russ) U.S. Geological Survey
Updater 01-NOV-1992 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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