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Silver Ledge

Occurrence in Okanogan county in Washington, United States with commodities 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. 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 10056035
MRDS ID SP00288
Record type Site
Current site name Silver Ledge
Related records 10048530, 10204533

Geographic coordinates

Geographic coordinates: -120.17117, 48.20427 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hungry Mountain(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)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 031N 021E 11 NEAR CENTER Washington

Comments on the location information

  • 0.25 MILES DOWNSTREAM FROM THE ANTIMONY QUEEN MINE, ELEVATION 300 FEET ABOVE GOLD CREEK.

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Bromyrite Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Newby Group
    Rock description Newby Group
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -120.17117, 48.20427
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Newby Group Was Deposited Along An Active Continental Maragin In Or Near An Island Arc.

Controls for ore emplacement

  • The Deposit Consists Of Quartz Veins In Graywacke And Shale. The Vein At The Collar Of The Shaft Is A 5-Ft-Wide Shear Zone And Consists Of Two Parts: One Is 1.5 Feet Wide And Is At The Footwall, And The Other Is 4 Inches Wide And Is On The Hanging Wall (Huntting, 1956, P. 148).

Comments on the geologic information

  • THE VEIN IS IN METASEDIMENTARY ROCKS OF THE JURASSIC-CRETACEOUS NEWBY GROUP (BUNNING, 1990, GEOL. MAP).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • PRODUCED 2 TONS OF ONSORTED ORE PRIOR TO 1921 (HUNTTING, 1956, P. 149).

Reference information

Bibliographic references

  • Deposit

    BUNNING, B.B., COMPILER, 1990, GEOLOGIC MAP OF THE EAST HALF OF THE TWISP 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-9, 51 P., 1 PL.

  • 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

    PATTY, E.N., 1921, THE METAL MINES OF WASHINGTON: WASHINGTON GEOLOGICAL SURVEY BULLETIN 23, 366 P.

General comments

Subject category Comment text
Deposit THE PROPERTY IS DEVELOPED BY A 150-FT INCLINED SHAFT AND A 1500-FT CROSSCUT (HUNTTING, 1956). ; 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-JUN-1994 Frank, Dave U.S. Geological Survey

Beyond USGS

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

Maps centered on this site