Horseshoe Basin Claims

Occurrence in Okanogan county in Washington, United States with commodity Molybdenum
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. Geologic structures
  11. Ore body information
  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. Reporter information

Geologic information

Identification information

Deposit ID 10041654
MRDS ID M056808
Record type Site
Current site name Horseshoe Basin Claims
Alternate or previous names Macpherson, Arnold Peak
Related records 10252584

Geographic coordinates

Geographic coordinates: -119.91257, 48.98789 (WGS84)
Elevation 2210
Relative position S SLOPE ARNOLD PEAK

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Horseshoe Basin(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

Colville National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Pasayten Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040N 023E 11 Washington

Commodities

Commodity Importance
Molybdenum Primary

Comments on the commodity information

  • PRODUCTION IN 1941

Materials information

Materials Type of material
Molybdenite Ore
Quartz Gangue

Analytical data

Result NO AU, AG, CU
Result 1.12% MOS2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Similkameen Composite Pluton
    Rock description Similkameen Composite Pluton
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Horseshoe Basin
    Rock description Horseshoe Basin
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -119.91257, 48.98789

Economic information

Geologic structures

Type of structure Local
Structure description Host Rocks Are Remnant Of Roof Pendant; Dikes Of Qtz Monzonite Cut The Gneiss And Schist.

Ore body information

  • Strike N70W
    Dip 60NE
    Plunge 80
    Plunge direction EAST
    Thickness 1.22M
    Length 30.48M
    Width 91.44M

Controls for ore emplacement

  • In Pegmatite Vein

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Workings at the site

  • Type of workings Surface
    Area 0.004HA
    Overall depth 3.66M
    Overall length 14.63M
    Overall width 3.05M

Comments on the workings information

  • 3 OPENCUTS.

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL. 37, PART II, P. 270.

  • Deposit

    WASH. DMG RPT. OF INV. NO. 18

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Greene, Robert U.S. Geological Survey
Updater 01-DEC-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.