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  3. Mineral Resource Data System (MRDS)

American Flag

Occurrence in Okanogan county in Washington, United States with commodities Gold, Copper, Zinc, 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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10093021
MRDS ID SP00186
Record type Site
Current site name American Flag

Geographic coordinates

Geographic coordinates: -118.84643, 48.75345 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bodie Mountain(quadrangle 1:24,000 scale)

Republic(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Kettle(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 038N 031E 36 NE4 Washington

Commodities

Commodity Importance
Gold Primary
Copper Primary
Zinc Critical Primary
Silver Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Fluorite Gangue
Quartz Gangue
Sanidine Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Trachyte
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -118.84643, 48.75345
ListMap

Economic information

Controls for ore emplacement

  • The Main Mineralized Structure Is A 2-8-Ft-Wide Silicified Shear Zone That Strikes N45e And Dips 50nw. Brecciated And Sheared Volcanic Rock Is Cemented By Quartz And Sanadine And As Much As 5% Fluorite. The Silicified Fluoritized Breccia Body Exposed On The Surface Above The Adit Is As Much As 250 Feet In Diameter. The American Flag Is The Southernmost Property Of The Zalla M-Silver Bell Mineralized Belt That Is About 1 Mile Long And Several Hundred Feet Wide (Moen, 1980, P. 69).

Comments on the geologic information

  • VOLCANIC ROCKS IN THIS PART OF THE TORADA CREEK GRABEN PLOT AS RHYOLITE ON A TAS DIAGRAM, BUT THEY CONTAIN SPARSE PLAGIOCLASE AND MAFIC PHENOCRYSTS IN AN APHANITIC GROUNDMASS THAT CONTAINS ABUNDANT PLAGIOCLASE MICROLITES. PLAGIOCLASE PHENOCRYSTS ARE COMMONLY STRONGLY SERICITIZED, AND MAFIC MINERALS ARE GENERALLY REPLACED BY SOME COMBINATION OF CHLORITE, CALCITE, EPIDOTE, AND SPHENE; SHAPES OF ALTERED MAFIC MINERALS SUGGEST THAT THEY WERE ORIGINALLY PYROXENE. THE PRESENCE OF SILICA STRINGERS AND VEINLETS IN SOME OF THESE ROCKS SUGGESTS THAT SILICA WAS INTRODUCED DURING ALTERATION (STOFFEL, 1990, P. 11).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Wauconda

Comments on the production information

  • TW0 30-TON SHIPMENTS OF COPPER ORE MADE IN 1918-1919 (MOEN, 1980, P. 69).

Reference information

Bibliographic references

  • Deposit

    DORISY, C.E., 1937, INDEX OF MINERAL OCCURENCES IN THE STATE OF WASHINGTON (REVISED EDITION): WASHINGTON STATE PLANNING COUNCIL RESEARCH PUBLICATION 2, 47 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

    MOEN, W.S., 1980, MYERS CREEK AND WAUCONDA MINING DISTRICTS OF NORTHEASTERN OKANOGAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 73, 96 P., 6 PL.

  • Deposit

    STOFFEL, K.L., COMPILER, 1990, GEOLOGIC MAP OF THE REPUBLIC 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-10, 62 P., 1 PL.

  • Deposit

    WDGER OF 90-18

General comments

Subject category Comment text
Deposit THE MAIN ADIT IS 97 FEET LONG AND TRENDS N45E ALONG A MINERALIZED SHEAR ZONE. SEVERAL SMALL PROSPECT PITS WERE PRESENT. DUMP SAMPLES COLLECTED BY MOEN (1980, P. 69) CONTAINED A TRACE TO 12.5 OZ/TON AG.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1991 Berger, Mary A. U.S. Geological Survey
Updater 01-MAY-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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