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Imnaha Group

Occurrence in Wallowa county in Oregon, United States with commodities Copper, 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. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10033336
MRDS ID M015653
Record type Site
Current site name Imnaha Group
Alternate or previous names Bluebird Copper-Silver
Related records 10177410

Geographic coordinates

Geographic coordinates: -116.8213, 45.66097 (WGS84)

Site location context

Political divisions (FIPS codes)

Wallowa(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Haas Hollow(quadrangle 1:24,000 scale)

Grangeville(quadrangle 1:100,000 scale)

Grangeville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imnaha(hydrologic unit)

Lower Snake(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Wallowa-Whitman 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 Oregon Wallowa

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 002N 048E 15 W Oregon

Comments on the location information

  • THE PROSPECT IS IN THE IMNAHA RIVER CANYON ABOUT 6.5 MILES NORTH OF IMNAHA

Commodities

Commodity Importance
Copper Primary
Silver Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Calcite Gangue
Prehnite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Wild Sheep Creek Formation/Seven Devils Group
    Rock description Wild Sheep Creek Formation/Seven Devils Group

Nearby scientific data

(1) -116.8213, 45.66097
ListMap

Economic information

Comments on the geologic information

  • MINERALIZATION IS LOCALIZED ALONG FRACTURES AND IN AMYGDULES. THE DEPOSITS ARE IN A SMALL WINDOW OF LATE TRIASSIC ROCKS, SURROUNDED BY TERTIARY BASALT

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category
Area name Wallowa-Whitman National Forest

Reference information

Bibliographic references

  • Deposit

    WAGNER, N.S., 1947, IMNAHA COPPER CLAIMS: ODGMI UNPUBLISHED REPORT.

  • Deposit

    WAGNER, N.S., 1947, IMNAHA COPPER CLAIMS: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES UNPUBLISHED REPORT.

  • Deposit

    1947 RECON ODGMI UNPUB. REPT

General comments

Subject category Comment text
Deposit VISIBLE CONCENTRATIONS OF COPPER MINERALS ARE SMALL AND WIDELY SEPARATED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

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