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  3. Mineral Resource Data System (MRDS)

Mammoth Group

Past Producer in Malheur county in Oregon, United States with commodity Gold
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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. Mineral occurrence model 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. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10033311
MRDS ID M015621
Record type Site
Current site name Mammoth Group
Alternate or previous names Black Eagle Mine
Related records 10153769

Geographic coordinates

Geographic coordinates: -117.72963, 44.42292 (WGS84)

Site location context

Political divisions (FIPS codes)

Malheur(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bridgeport(quadrangle 1:24,000 scale)

Brogan(quadrangle 1:100,000 scale)

Baker City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Willow(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Oregon Malheur

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 013S 041E 19 E OF E Oregon

Commodities

Commodity Importance
Gold Primary

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

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

Nearby scientific data

(1) -117.72963, 44.42292
ListMap

Economic information

Controls for ore emplacement

  • Limonite Shear Zone

Comments on the geologic information

  • FRESH ROCK FROM BOTTOM OF SHAFT SHOWS FINE DISSEMINATED SULFIDES

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mormon Basin

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • TWO 35 FT SHAFTS

Reference information

Bibliographic references

  • Deposit

    OREGON METAL MINES HANDBOOK, 1939, ODGMI BULL. 14-1, P. 79

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-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
Updater 01-MAY-1995 Li, Zhiping (Peters, S.) U.S. Geological Survey

Beyond USGS

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

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