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Mountain Beaver

Past Producer in Okanogan county in Washington, United States with commodities Gold, Copper, Silver, Bismuth
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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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10104288
MRDS ID SP00257
Record type Site
Current site name Mountain Beaver
Related records 10228438

Geographic coordinates

Geographic coordinates: -120.32091, 48.78622 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Billy Goat Mountain(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)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 038N 020E 15 Washington

Comments on the location information

  • (UNSURVEYED, APPROXIMATE LOCATION) ON ISABELLA RIDGE ADJACENT TO THE BILLY GOAT PROSPECT.

Commodities

Commodity Importance
Gold Primary
Copper Primary
Silver Primary
Bismuth Critical Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Gold Ore
Pyrite Unknown

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -120.32091, 48.78622
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Volcanics Were Deposited As Part Of An Island Arc.

Controls for ore emplacement

  • Andesite Tuff And Brecci Generally Strike N30w And Dip 70w To Vertical. A Plagioclase Porphyry Dike Or Sill Is Discontinously Exposed Along The West Edge Of The Billy Goat Property. Pyrite And Copper Minerals Occur Locally In 0.25-2-In.-Wide Quartz Veinlets, Which Are Located Near Steeply Dipping, Northwest-Trending Faults And Fractures. The Veinlets Are Disseminated Through The Fractured And Layered Andesite And Plagioclase Porphyry (Staatz And Others, 1971, P. 111-112).

Comments on the geologic information

  • MINERALIZATION IS PRESENT IN ANDESITE TUFF AND BRECCIA OF PROBABLE CRETACEOUS AGE AND IN A PLAGIOCLASE PORPHYRY DIKE OR SILL THAT INTRUDES THE VOLCANIC ROCKS (STOFFEL, 1990).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Comments on the production information

  • SMALL SHIPMENTS WERE MADE IN 1922, 1931, 1934, AND 1935 (HUNTTING, 1956, P. 144). ONE SHIPMENT OF 3639 LB MADE IN 1934 ASSAYED 4.1% CU, 2.08 OZ/TON AU, AND 1.9 OZ/TON AG (STAATZ AND OTHERS, 1971). ANOTHER SHIPMENT OF CRUDE ORE YIELDED 1.81% CU, 1.53 OZ/TON AU, 1.13 OZ/TON AG, AND A MINOR AMOUNT OF BISMUTH (HUNTTING, 1956, P. 144). THE MOUNTAIN BEAVER IS THE ONLY CLAIM IN THE BILLY GOAT PROPERTY TO HAVE PRODUCED (STAATZ AND OTHERS, 1971).

Reference information

Bibliographic references

  • Deposit

    DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.

  • Deposit

    HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

  • Deposit

    STAATZ, M.H.; TABOR, R.W.; WEIS, P.L.; ROBERTSON, J.F.; VAN NOY, R.M.; PATTEE, E.C., 1972, GEOLOGY AND MINERAL RESOURCES OF THE NORTHERN PART OF THE CASCADES NATIONAL PARK, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1359, 132 P., 2 PL.

  • Deposit

    STOFFEL, K.L., MCGRODER, M.F., COMPILERS, 1990, GEOLOGIC MAP OF THE ROBINSON MOUNTAIN 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-5, 39 P., 1 PL.

General comments

Subject category Comment text
Deposit THE PROPERTY WAS REPORTEDLY DEVELOPED BY TWO ADITS (STAATZ AND OTHERS, 1971). ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1991 Berger, Mary A. U.S. Geological Survey
Updater 01-OCT-1993 Frank, Dave U.S. Geological Survey

Beyond USGS

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

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