Similkameen Placers

Producer in Okanogan county in Washington, United States with commodities Gold, Platinum
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10037873
MRDS ID M045069
Record type Site
Current site name Similkameen Placers

Geographic coordinates

Geographic coordinates: -119.44756, 48.93956 (WGS84)
Elevation 313
Location accuracy 100(meters)
Relative position ON SIMILKAMEEN RIVER BETWEEN OROVILLE AND NIGHTHAWK, Accurate Along River, Accurate Along River, Accurate Along River

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Oroville(quadrangle 1:24,000 scale)

Oroville(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Okanogan(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 040N;040N;040N 025E;026E;027E Washington

Comments on the location information

  • LOCATION GIVEN IS ON SIMILKAMEEN RIVER AT OROVILLE, EASTERNMOST EXTENT OF PLACERS; PREVIOUS QUAD DESIGNATION = OROVILLE 1:24000

Commodities

Commodity Importance
Gold Primary
Platinum Critical Secondary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -119.44756, 48.93956

Economic information

Ore body information

  • General form BARS AND LOWER TERRACES

Controls for ore emplacement

  • Stream Hydraulics

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1859
Production years INTERMITTENTLY UP TO 1955

Land status

Ownership category Private

Comments on the production information

  • REPORTEDLY SMALL BYPRODUCT PGE PRODUCTION, BUT THIS HAS NOT BEEN VERIFIED

Reference information

Bibliographic references

  • Deposit

    PARDEE, J.T., 1929, PLATINUM AND BLACK SAND IN WASHINGTON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1928: U.S. GEOLOGICAL SURVEY BULLETIN 805, P. 2, 10.

  • Deposit

    PATTY, E.N., AND GLOVER, S.L., 1921, THE MINERAL RESOURCES OF WASHINGTON, WITH STATISTICS FOR 1919: WASHINGTON GEOLOGICAL SURVEY BULLETIN 21, P. 84-85.

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 281.

  • 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. 271.

  • Production

    DERKEY AND OTHERS, 1990

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-75 Blair, Will N. U.S. Geological Survey
Updater 01-FEB-85 Lawson, William A. U.S. Geological Survey
Updater 01-JUL-91 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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