Mid Range

Past Producer in Okanogan county in Washington, United States with commodities Gold, Silver, Copper, Zinc
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. Reporter information

Geologic information

Identification information

Deposit ID 10056010
MRDS ID SP00253
Record type Site
Current site name Mid Range
Related records 10048528, 10277088

Geographic coordinates

Geographic coordinates: -120.59813, 48.4851 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gilbert(quadrangle 1:24,000 scale)

Twisp(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)

Lake Chelan-Sawtooth 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 035N 018E 34 Washington

Comments on the location information

  • AT THE HEAD OF NORTH CREEK, ELEVATION 6000-7760 FEET, ABOUT 5 MILES BY TRAIL NORTH OF GILBERT, AT THE TERMINOUS OF THE TWISP RIVER ROAD.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -120.59813, 48.4851

Economic information

Geologic structures

Type of structure Regional
Structure description The Golden Horn Batholith Was Intruded Into The Hozameen Fault, The Major Fault Bounding The Southwestern Side Of The Methow Basin. Radiometric Dating Suggests That Magmatic Crystallization Occured At Approximately 47 M.Y. K-Ar Biotite, Fission-Track Allanite, Rb-Sr Isochron Ages That Fall Between 38 And 42 M.Y. Probably Represent The Age Of Postcrystallization Hydrothermal Alteration (Stoffel And Mcgroder, 1990).

Controls for ore emplacement

  • The Deposit Consists Of Two Mineralized Quartz Veins In Granite (Huntting, 1956, P. 144).

Comments on the geologic information

  • THE VEINS ARE IN GRANITE OF THE GOLDEN HORN BATHOLITH OF EOCENE AGE (STOFFEL AND MCGRODER, 1990).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Comments on the production information

  • TEN TONS OF ORE IN 1939 AND 22 TONS OF ORE IN 1940 WERE SHIPPED TO THE TACOMA SMELTER (HUNTTING, 1956, P. 144).

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

    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.

  • Deposit

    WASHINGTON DIVISION OF MINES AND MINING, 1941, DIRECTORY OF WASHINGTON MINING PROPERTIES: WASHINGTON DIVISION OF MINES AND MINING INFORMATION CIRCULAR 7, 74 P.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-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.