Fargo Group

Occurrence in Wallowa county in Oregon, United States with commodities Copper, Gold, Iron
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10032884
MRDS ID M014672
Record type Site
Current site name Fargo Group
Alternate or previous names Eureka Mining Property, Mountain Chief, Indian Trail

Geographic coordinates

Geographic coordinates: -116.76519, 45.81542 (WGS84)

Site location context

Political divisions (FIPS codes)

Wallowa(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deadhorse Ridge(quadrangle 1:24,000 scale)

Grangeville(quadrangle 1:100,000 scale)

Grangeville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hells Canyon(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 004N 048E 24 Oregon

Comments on the location information

  • LOCATED NEAR CONFLUENCE OF SNAKE RIVER AND IMNAHA RIVER LAND STATUS VALUE CALCULATED 7-94 USING GIS OVERLAY ANALYSIS WITH USFS LAND OWNERSHIP BOUNDARIES, 1:126,720 SCALE.

Commodities

Commodity Importance
Copper Primary
Gold Primary
Iron Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Hematite Ore
Magnetite Ore
Pyrite Ore

Alteration

  • (Local) Feldspars In The Diorite Are Replaced By Sericite And Kaolinite. Amphiboles Are Partially Replaced By Chlorite, Magnetite, And Limonite

Analytical data

Result GRAB SAMPLE FROM MOUNTAIN CHIEF DUMP (CBF 55) GAVE 54.5% FE, 0.8% CU.

Host and associated rocks

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

Nearby scientific data

(1) -116.76519, 45.81542

Economic information

Ore body information

  • General form TABULAR

Comments on the geologic information

  • DEPOSITS ARE CHARACTERISTICALLY SMALL, TABULAR FISSURE FILLINGS CONTAINING A LARGE PROPORTION OF SPECULARITE HEMATITE, MAGNETITE, AND LESSER AMOUNTS OF PYRITE AND CHALCOPYRITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1897
Discoverer E. Barton, M. Hibbs

Mining district

District name Imnaha

Land status

Ownership category National Forest
Area name Wallowa-Whitman National Forest

Workings at the site

  • Type of workings Underground
    Length 304.8M

Reference information

Bibliographic references

  • Analytical Data

    SRC.REF: REFERENCE 1

  • Deposit

    LIBBEY, F.W., 1943, SOME MINERAL DEPOSITS IN THE AREA SURROUNDING THE JUNCTION OF THE SNAKE AND IMNAHA RIVERS: ODGMI GMI 11, P. 5.

  • Deposit

    VALLIER, T.L., 1974, A PRELIMINARY REPORT ON THE GEOLOGY OF PART OF THE SNAKE RIVER CANYON, OREGON AND IDAHO, ODGMI GMS-6

  • Deposit

    1942 RECON ODGMI, REF.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-NOV-1997 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.