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  3. Mineral Resource Data System (MRDS)

Chopaka Silver Claim

Occurrence in Okanogan county in Washington, United States with commodities Silver, Gold, 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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10041512
MRDS ID M056583
Record type Site
Current site name Chopaka Silver Claim
Related records 10253104

Geographic coordinates

Geographic coordinates: -119.67951, 48.97567 (WGS84)
Elevation 884
Relative position ABOUT 2 MILES WNW OF OROVILLE.

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nighthawk(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

Bureau of Land Management(Bureau of Land Management OR)

Bureau of Land Management OR BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040N 025E 10 S2 Washington

Comments on the location information

  • ON LITTLE CHOPAKA MTN; ELEVATION IS APPROXIMATE.

Commodities

Commodity Importance
Silver Primary
Gold Secondary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Quartz Gangue

Analytical data

Result .8-1.1 OZ AU, 75-125 OZ AG, 1.5-1.9% CU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Similkameen Composite Pluton
    Rock description Similkameen Composite Pluton
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -119.67951, 48.97567
ListMap

Economic information

Ore body information

  • Width 3.05M

Comments on the geologic information

  • GEOL.DESC: QUARTZ FINE-GRAINED

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Nighthawk District

Ownership information

  • Type Owner
    Owner Professor Riley

Comments on the workings information

  • 30 FT DRIFT

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL. 37, PART II, P. 302.

  • Deposit

    WASH. DMG BULL 64, PLATE 1

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