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Keystone

Occurrence in Yakima county in Washington, United States with commodities Gold, Silver, Copper, Tungsten, Lead
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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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10048645
MRDS ID MP00250
Record type Site
Current site name Keystone

Geographic coordinates

Geographic coordinates: -121.28868, 46.83482 (WGS84)
Elevation 1463
Relative position 3 MI SOUTH OF BUMPING LAKE DAM; ABOUT 1.3 MI SOUTHEAST OF BUMPING LAKE

Site location context

Political divisions (FIPS codes)

Yakima(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bumping Lake(quadrangle 1:24,000 scale)

Mount Rainier(quadrangle 1:100,000 scale)

Yakima(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Naches(hydrologic unit)

Yakima(hydrologic accounting unit)

Yakima(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)

William O. Douglas Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Yakima

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 016N 012E Washington

Comments on the location information

  • UNSURVEYED. ON WEST-FACING SLOPE OF NELSON RIDGE. 12 UNPATENTED CLAIMS. HUNTTING INDICATES APPROX. SEC. 15, T. 15 N., R. 12 E.; THIS LOOKS INCORRECT BASED ON LOCATION SHOWN IN SIMMONS AND OTHERS

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Tungsten Critical Tertiary
Lead Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Scheelite Ore
Wolframite Ore

Alteration

  • (Local) Granodiorite Locally Highly Fe-Oxide Stained

Analytical data

Result SAMPLE FROM STOCKPILE ASSAYED 0.2 OZ/TON AG, 0.16% CU, 0.36% AS, 0.01% WO3. 2 GRAB SAMPLES OF MILL CONCENTRATES ASSAYED 0.54, 2.8 OZ/TON AG
Result 3.8, 4.43 OZ/TON WO3
Result TR, 0.06 OZ/TON AU

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyodacite
    Rock unit name Bumping Lake Pluton
    Rock description Bumping Lake Pluton

Nearby scientific data

(1) -121.28868, 46.83482
ListMap

Economic information

Ore body information

  • General form VEIN
    Strike N TO NW
    Dip W
    Thickness 0.76M
    Length 1609.3M

Controls for ore emplacement

  • Contact Of Granodiorite And Rhyodacite

Comments on the geologic information

  • BUMPING LAKE PLUTON MAY BE PART OF OR CORRELATED WITH SNOQUALMIE BATHOLITH

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1913

Mining district

District name Bumping Lake District

Land status

Ownership category National Wilderness
Area name In William O. Douglas Wilderness In Snoqualmie National Forest

Ownership information

  • Type Owner
    Owner Pemberton, William And Harlow, Sam
    Home office Yakima, Wash.
    First year 1941

Workings at the site

  • Type of workings Surface/Underground
    Length 27.43M

Comments on the workings information

  • 2 CAVED ADITS, SEVERAL SURFACE CUTS

Comments on development

  • INACTIVE FOR MANY YEARS

Reference information

Bibliographic references

  • Deposit

    SIMMONS, G.C., VAN NOY, R.M., AND ZILKA, N.T., 1983, MINERAL RESOURCES OF THE COUGAR LAKES-MOUNT AIX STUDY AREA, YAKIMA AND LEWIS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1504, P. 58-59.

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 106.

General comments

Subject category Comment text
Deposit POSSIBLE POLYMETALLIC VEINS PERIPHERAL TO NEW FIND PORPHYRY COPPER DEPOSIT. MINERALIZATION IS IN FAULT CONTACT BETWEEN GRANODIORITE AND RHYODACITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1992 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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