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American Flag

Occurrence in Okanogan county in Washington, United States with commodities Copper, Silver, Gold, Zinc, 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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10055965
MRDS ID SP00187
Record type Site
Current site name American Flag
Alternate or previous names Oriental, Central;
Related records 10048525, 10156160

Geographic coordinates

Geographic coordinates: -120.38702, 48.59289 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mazama(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 036N 020E 30 SE4 Washington

Comments on the location information

  • ON A CLIFF ABOUT 1 MILE NORTHEAST OF MAZAMA

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Primary
Zinc Critical Primary
Lead Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue
Sericite Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -120.38702, 48.59289
ListMap

Economic information

Controls for ore emplacement

  • The Deposit Is In A Breccia Pipe. Strongly Brecciated And Partially Rotated Fragment Of Quartz Diorite As Much As 3 Cm Long Are In A Matrix Of Quartz, Tourmaline, Calcite, Pyrite, And Chalcopyrite. The American Flag Deposit Is Part Of The Mazama Porphyry Copper-Molybdenum System (Riedell, 1979).

Comments on the geologic information

  • THE AMERICAN FLAG DEPOSIT IS IN A BRECCIA PIPE OF THE FAWN PEAK STOCK OF CRETACEOUS AGE. IT IS AN ELONGATE, NORTHWEST-TRENDING INTRUSION ALONG THE NORTHEAST SIDE OF THE METHOW RIVER VALLEY; IT IS SITUATED ALONG THE AXIS OF THE GOAT PEAK SYNCLINE (STOFFEL AND MCGRODER, 1990).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • PRODUCED A FEW HUNDRED TONS BEFORE 1910; HAD A SMALL AMOUNT OF PRODUCTION IN 1940 (HUNTTING, 1956, P. 135).

Reference information

Bibliographic references

  • 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

    RIEDELL, K.B., 1979, GEOLOGY AND PORPHYRY COPPER MINERALIZATION OF THE FAWN PEAK INTRUSIVE COMPLEX, METHOW VALLEY, WASHINGTON: UNIVERSITY OF WASHINGTON MASTER OF SCIENCE THESIS, 52 P., 4 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.

  • Deposit

    WDGER OF 90-18

General comments

Subject category Comment text
Deposit THE AMERICAN FLAG DEPOSIT IS PART OF THE MAZAMA PORPHYRY COPPER-MOLYBDENUM DEPOSIT (RIEDELL, 1979).

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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