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  3. Mineral Resource Data System (MRDS)

Chopaka Chromium Prospect

Occurrence in Okanogan county in Washington, United States with commodity Chromium
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10041564
MRDS ID M056656
Record type Site
Current site name Chopaka Chromium Prospect

Geographic coordinates

Geographic coordinates: -119.77479, 48.96427 (WGS84)
Elevation 2286
Relative position NEAR TOP OF MT. CHOPAKA

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hurley Peak(quadrangle 1:24,000 scale)

Oroville(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Similkameen(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040N 024E 13 W2 Washington

Comments on the location information

  • NEAR WEST 1/4 CORNER.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore
Magnetite Ore
Olivine Gangue
Serpentine Gangue

Analytical data

Result 5% CHROMITE IN RESTRICTED AREAS

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Nearby scientific data

(1) -119.77479, 48.96427
ListMap

Economic information

Ore body information

  • General form GRAINS, BANDS, VEINLETS
    Length 0.46M
    Width 0.1M

Controls for ore emplacement

  • Veinlets Along Fault In Dunite

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Workings at the site

  • Type of workings Unknown
    Length 2.44M
    Overall depth 2.44M

Comments on the workings information

  • 8 FT SHAFT

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL 37, P. 38

General comments

Subject category Comment text
Deposit CHROMITE OCCURS AS DISSEMINATED GRAINS AND AS BANDS IN DUNITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Unknown U.S. Geological Survey
Updater 01-AUG-1982 Lawson, William A. 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