Little Chief Group

Producer in Okanogan county in Washington, United States with commodities Silver, Gold, Copper
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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10109638
MRDS ID M056625
Record type Site
Current site name Little Chief Group
Alternate or previous names Double Header, Grand Coulee
Related records 10131429

Geographic coordinates

Geographic coordinates: -119.01225, 48.14845 (WGS84)
Relative position ABOUT 2 MILES SW OF NESPELEM VILLAGE.

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
031N 030E 35 Washington

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Secondary

Comments on the commodity information

  • PRODUCTION MORE THAN $10,000 BY 1921 ADDITIONAL 1937, 1954

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Pyrargyrite Ore
Pyrite Ore
Stephanite Ore
Calcite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Granite Is Sericitized

Analytical data

Result .09 TO .31 OZ AU, 77.7 TO 590 OZ AG

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Colville
    Rock description Colville
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -119.01225, 48.14845

Economic information

Geologic structures

Type of structure Local
Structure description To A Moderate Degree The Lode Is The Lode Is Sheared And Fractured By Post-Mineral Movement.

Controls for ore emplacement

  • Fracture In Granite

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the production information

  • PRODUCTION ALSO IN 1937 AND 1954.

Workings at the site

  • Type of workings Underground
    Overall depth 24.38M
    Overall length 914.4M

Comments on the workings information

  • 3000 FT OF WORKINGS ON 3 LEVELS INCLUDE 3 ADITS, AN 80 FT SHAFT, AND 7 STOPES.

Comments on development

  • SHAFT, ADITS, AND STOPES. DEVELOPMENT IN 1956, 1967, 1969, AND 1970.

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL. 37, PART II, P. 306.

  • Deposit

    USGS BULL. 677, P. 74, PLATE 1

  • Deposit

    WASH. DMG IC 46, P. 20

  • Production

    WASH. DMG BULL 37, P. 306; USGS BULL 677, P. 74

General comments

Subject category Comment text
Deposit 18 UNPATENTED CLAIMS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Mccoy, Gail U.S. Geological Survey
Updater 01-JAN-1983 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.