1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Great Western Mine

Prospect in Okanogan county in Washington, United States with commodities Lead, Zinc, Silver, Manganese, Iron
Map
XML
JSON
KML
B
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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10041601
MRDS ID M056710
Record type Site
Current site name Great Western Mine

Geographic coordinates

Geographic coordinates: -119.04725, 48.21484 (WGS84)
Relative position ABOUT 5 MILES NW OF NESPELEM.

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Armstrong Creek(quadrangle 1:24,000 scale)

Omak(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chief Joseph(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 031N 030E 04 NW OF SW OF NE OF NE Washington

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Secondary
Manganese Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Galena Ore
Limonite Ore
Magnetite Ore
Rhodonite Ore
Sphalerite Ore
Epidote Gangue
Garnet Gangue
Quartz Gangue
Vesuvianite Gangue

Analytical data

Result ESTIMATED 6% SPHALERITE & GALENA

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Colville Batholith
    Rock description Colville Batholith
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
    Rock unit name Covada Group
    Rock description Covada Group

Nearby scientific data

(1) -119.04725, 48.21484
ListMap

Economic information

Controls for ore emplacement

  • Contact Zone Between Granite And Sed Rocks

Comments on the geologic information

  • CONSIDERABLE GLACIAL DRIFT IS STREWN OVER THE SURFACE. OUTCROPS RANGE FROM A RUSTY QTZ-MICA SCHIST CONTAINING VEINLETS OF APLITE, PEGMATITE, AND QTZ TO A BANDED HORNSTONE, PORTIONS OF WHICH HAVE DISINTIGRATED TO GOSSAN-LIKE MASSES OF LIMONITE SHOWING THE STAIN OF MN OXIDES. THE SULFIDES AND MAGNETITE ARE INTERGROWN WITH THE SILICATES AND APPEAR TO HAVE BEEN INTRODUCED WHEN THE ROCKS WERE METAMORPHOSED. ; GEOL.DESC: SED. ROCKS SURROUNDED, METAMORPHOSED BY GRANITE

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Comments on the workings information

  • MAIN SHAFT AT LEAST 40 FT DEEP, FROM WHICH LEVELS ARE SAID TO HAVE BEEN RUN. THE SHAFT IS EQUIPPED WITH A "BABY" HOIST, AND THE SIZE OF THE DUMP WOULD INDICATE THAT PERHAPS 200 LINEAR FT OF UNDERGROUND WORK.

Comments on development

  • SHAFTS WITH LEVELS; BABY HOIST.

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL. 37, PART II, P. 219.

  • Deposit

    USGS BULL 677, P. 81-82, PLATE V11

General comments

Subject category Comment text
Deposit SMALL BODY OF SEDIMENTARY ROCK SURROUNDED AND METAMORPHOSED BY GRANITE.
Deposit 3 CLAIMS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Greene, Robert U.S. Geological Survey
Updater 01-SEP-1982 Lawson, William A. (Evarts, Russell C.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site