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Spokane

Past Producer in Okanogan county in Washington, United States with commodities Gold, Silver, Zinc, Lead, Copper
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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. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Ownership information
  17. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10048531
MRDS ID MP00122
Record type Site
Current site name Spokane
Alternate or previous names Gold Crown
Related records 10056038

Geographic coordinates

Geographic coordinates: -120.15562, 48.37372 (WGS84)
Elevation 610
Relative position ABOUT 1.4 MI NORTHWEST OF TWISP

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twisp West(quadrangle 1:24,000 scale)

Twisp(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Methow(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 033N 021E 12 Washington

Comments on the location information

  • ON TWISP RIVER ROAD

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

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) > Felsic Volcanic Rock > Dacite
    Rock unit name Newby Group;Newby Group
    Rock description Newby Group;Newby Group
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -120.15562, 48.37372
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Dacite Is Brecciated

Ore body information

  • General form BUNCHES WITHIN VEINS
    Thickness 0.91M

Controls for ore emplacement

  • Fault Zone And Brecciation

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner Monterey Mining And Milling Co., Twisp, Wash.
    First year 1954

Production statistics

  • Year 1941
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^0.4 Oz/Ton Au, 20.25 Oz/Ton Ag, 4.5% Zn, 3.8% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Lead Lead 4wt-pct
    Ore Zinc Zinc 5wt-pct
    Ore Silver Silver 572g/mt
    Minor Ore Gold Gold 11g/mt

Comments on the production information

  • OTHER SMALL SHIPMENTS MADE IN 1939 AND 1954

Comments on the workings information

  • SEVERAL HUNDRED FEET OF DRIFTS AND CROSSCUTS, SOME STOPES

Reference information

Bibliographic references

  • 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. 272.

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 149.

  • Production

    HUNTTING, 1956

General comments

Subject category Comment text
Deposit IRREGULAR QUARTZ-CALCITE VEIN. DERKEY AND OTHERS SUGGEST, WITH HESITATION, THAT THIS DEPOSIT MAY BE A MASSIVE SULFIDE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-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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