Great Excelsior Mine

Producer in Whatcom county in Washington, United States with commodities Gold, Silver, Copper, Lead, Zinc, Arsenic, Antimony
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. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Reserves and resources
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10047768
MRDS ID M700046
Record type Site
Current site name Great Excelsior Mine
Alternate or previous names Lincoln Mine, President Mine, Excelsior
Related records 10056232, 10277896

Geographic coordinates

Geographic coordinates: -121.80596, 48.8987 (WGS84)
Elevation 594
Relative position 6 MI EAST OF GLACIER; ABOUT 1 MI SOUTHWEST OF PINUS LAKE

Site location context

Political divisions (FIPS codes)

Whatcom(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bearpaw Mountain(quadrangle 1:24,000 scale)

Mount Baker(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nooksack(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Mt. Baker-Snoqualmie 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 Whatcom

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 039N 008E 06 Washington

Comments on the location information

  • UNSURVEYED. ON WEST SIDE OF WELLS CREEK, 0.5 MI ABOVE JUNCTION WITH NOOKSACK RIVER

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Tertiary
Lead Tertiary
Zinc Critical Tertiary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Silver Ore
Sphalerite Ore
Tetrahedrite Ore
Dolomite Gangue
Quartz Gangue

Alteration

  • (Local) Andesite Is Silicified And Sericitized

Analytical data

Result ASSAYS FROM EARLY PRODUCTION: TR-0.08 OZ/TON AU (AVG 0.02-0.03 OZ/TON). IN SOME SAMPLES AG AVG=2.0 OZ/TON. HIGH AU ASSAY FROM RESERVES: 0.54 OZ/TON (AVG 0.09 OZ/TON)
Result HIGH SILVER ASSAY: 117.7 OZ/TON (AVG 3.44 OZ/TON). MILL LEVEL TUNNEL: 0.024 OZ/TON AU, 4.34 OZ/TON AG
Result BLACKSMITH TUNNEL: 0.014 OZ/TON AU, 1.70 OZ/TON AG
Result BIG STOPE: 0.010 OZ/TON AU, 1.73 OZ/TON AG
Result LOWER TUNNEL: TR AU, 0.38 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 Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics
    Rock description Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics;Wells Creek Volcanics

Nearby scientific data

(1) -121.80596, 48.8987

Economic information

Geologic structures

Type of structure Regional
Structure description West-Plunging Syncline Superimposed On West Limb Of Regional North-Trending Anticline
Type of structure Local
Structure description Strong Shears

Ore body information

  • General form BRECCIA PIPE, STOCKWORKS
    Strike N 5-15 E
    Dip 55W
    Thickness 82.3M
    Length 121.92M
    Width 99.06M

Controls for ore emplacement

  • Shear Zone

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1900
Discoverer W.H. Morton And Others
Year of first production 1903
Year of last production 1916

Mining district

District name Mount Baker District

Land status

Ownership category National Forest
Area name In Mount Baker National Forest

Ownership information

  • Type Owner-Operator
    Owner Steelhead Gold
    First year 1988

Reserves and resources

  • Type In-situ
    Estimate year 1988
    Total resources 2000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.94 g/mt Gold Major 1988
    Silver Ag 57.798 g/mt Silver Major 1988

Comments on the reserve resource information

  • MILLING TESTS SHOW THAT 85% OF THE GOLD AND SILVER CAN BE RECOVERED (MOEN).

Workings at the site

  • Type of workings Underground
    Length 518.16M
    Overall depth 99.06M

Comments on the workings information

  • DRIFTS, CROSSCUTS, AND OPEN STOPES

Comments on development

  • IN 1902, A 20 STAMP MILL WAS CONSTRUCTED. DRILLED BY HANNA MINING CO. (1975), QUINTANA EXPLORATION CO. (1976). U.S. BORAX AND CHEMICAL CORP. (1977-1981), AND STEELHEAD GOLD (1984-1987)

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. 177.

  • Deposit

    MOEN, W.S., 1969, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 57, P. 86-87.

  • Deposit

    MOEN, W.S., 1976, SILVER OCCURENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, P. 160.

  • Deposit

    GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 26.

  • 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. 557.

  • Production

    MOEN, 1969; HUNTTING, 1956; DERKEY AND OTHERS, 1990

  • Reserve-Resource

    DERKEY AND OTHERS

General comments

Subject category Comment text
Deposit PROPERTY CONSISTS OF 10 CLAIMS AND 2 FRACTIONS. MAP OF MINE WORKINGS IN MOEN (1969, PL. 7). ; INFO.SRC : 1 PUB LIT
Deposit SEE ALSO MRDS RECORD M700409
Deposit DEPOSIT IS SULFIDE-CEMENTED BRECCIATED VEINS ALONG A SHEAR ZONE. THE MAIN FRACTURES ARE ABOUT 4,000 FT LONG. DIMENSIONS ARE OF BRECCIATED ZONE. DIP GIVEN IS THAT OF EAST BORDER.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1981 Caress, Mary E. (Evarts, Russ) U.S. Geological Survey
Updater 01-DEC-1991 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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