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Monument Peak

Occurrence in Okanogan county in Washington, United States with commodities Copper, Molybdenum, Gold, Silver
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10048449
MRDS ID MP00036
Record type Site
Current site name Monument Peak
Alternate or previous names Monument, Lost River Claim

Geographic coordinates

Geographic coordinates: -120.41814, 48.76177 (WGS84)
Elevation 1372
Location accuracy 1000(meters)
Relative position ABOUT 1.3 MI SOUTHEAST OF THE THREE PINACLES, Estimated On Lost River Claim Based On Description And Map In Staatz And Others

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lost Peak(quadrangle 1:24,000 scale)

Robinson Mountain(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Methow(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Okanogan-Wenatchee 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 038N 019E 25 CENTER OF SW4 Washington

Comments on the location information

  • UNSURVEYED. LOCATION OF PORPHYRY COPPER MINERALIZATION IS VAGUE AND MAY BE ELSEWHERE WITHIN THE MONUMENT PEAK STOCK

Commodities

Commodity Importance
Copper Primary
Molybdenum Secondary
Gold Tertiary
Silver Tertiary

Comments on the commodity information

  • THERE IS NOT ENOUGH FLUORITE IN THE DEPOSIT TO BE RECOVERED ECONOMICALLY

Materials information

Materials Type of material
Molybdenite Ore
Calcite Gangue
Fluorite Gangue
Quartz Gangue

Alteration

  • (Local) Hornfels Has Been Altered

Analytical data

Result CHIP SAMPLE OF VEIN MATERIAL CONTAINS 0.002 OZ/TON AU, 0.09 OZ/TON AG

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Monument Peak Stock
    Rock description Monument Peak Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
    Rock unit name Harts Pass Group, Harts Pass Formation
    Rock description Harts Pass Group, Harts Pass Formation

Nearby scientific data

(1) -120.41814, 48.76177
ListMap

Economic information

Ore body information

  • General form DISSEMINATED
    Dip }
    Width 2.44M
  • General form DISSEMINATED
    Dip }

Comments on the geologic information

  • HORNFELS IS ADJACENT TO MONUMENT PEAK STOCK

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1951
Discoverer Howard E. Culp, C.B. Wilhem

Land status

Ownership category National Wilderness
Area name In Pasayten Wilderness In Okanogan National Forest

Comments on the workings information

  • SHALLOW DISCOVERY PIT

Comments on development

  • VEIN DEPOSIT FOUND IN 1951. PORPHYRY COPPER DEPOSIT IDENTIFIED LATER

Reference information

Bibliographic references

  • Deposit

    STAATZ, M.H., WEIS, P.L., TABOR, R.W., ROBERTSON, J.F., VAN NOY, R.M., PATTEE, E.C., AND HOLT, D.C., 1971, MINERAL RESOURCES OF THE PASAYTEN WILDERNESS AREA, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1325, P. 115-116.

  • Deposit

    HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 34.

  • Deposit

    GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 32.

  • Deposit

    STOFFEL, K.L., AND MCGRODER, M.F., 1990, GEOLOGIC MAP OF THE ROBINSON MTN. 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-5, SCALE 1:100,000.

General comments

Subject category Comment text
Deposit WEAK GEOCHEMICAL ANOMALIES. SHEAR ZONE NEAR VEIN DEPOSIT STRIKES N30E, DIPS 55NW. VEINS CONTAINED NO SULFIDES, BUT RUBBLE IN CREEK CONTAINS MOLYBDENITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-91 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

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