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Mammoth Mine

Occurrence in Lemhi county in Idaho, United States with commodities Silver, Gold, Copper
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Land status
  18. Ownership information
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10070814
MRDS ID W013913
MAS/MILS ID 0160590352
Record type Site
Current site name Mammoth Mine
Alternate or previous names Hisey, Ohio

Geographic coordinates

Geographic coordinates: -114.5611, 44.9742 (WGS84)
Elevation 2042
Relative position 2 MI W OF OLD TOWN OF YELLOWJACKET

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Yellowjacket(quadrangle 1:24,000 scale)

Challis(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Middle Fork Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis 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 Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 019N 016E 23 S2NW Idaho

Comments on the location information

  • About .75 mi SW of the Columbia on steep S. slope of gulch tributary to, less than .5 mi. above Hoodoo Creek

Commodities

Commodity Importance
Silver Primary
Gold Secondary
Copper Tertiary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Fe Oxides

Analytical data

Result 0.4 TO 0.5 OZ. AU/TON REPORTED

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Syenite
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Lcretetert Dikes-Hornblende-Biotite Dikes;Lcretetert Border Facies-Syenite
    Rock description Lcretetert Dikes-Hornblende-Biotite Dikes;Lcretetert Border Facies-Syenite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Syenite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -114.5611, 44.9742
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Older Faults Strike N 60 Deg W And N 30 Deg W, Dip 55 Deg Sw And 60 Deg Sw; Younger Faults Strike N 30 Deg E, Dip 75 Deg Nw

Ore body information

  • Strike N 60 DEG W
    Dip 55 DEG SW
    Length 21.34M
    Width 2.44M

Controls for ore emplacement

  • Fissure

Economic information about the deposit and operations

Operation type Underground
Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Yellowjacket District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner-Operator
    Owner Jack Hisey

Workings at the site

  • Type of workings Underground
    Length 60.96M

Comments on the workings information

  • 2 adits

Comments on development

  • 5-Ton mill; Several unpatented claims

Reference information

Bibliographic references

  • Deposit

    Anderson, Alfred L., 1953, Gold - Copper - Lead Deposits Of The Yellowjacket District, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 94, 41 P

  • Deposit

    1953 Recon Idaho Bureau Of Mines And Geology Pamphlet 94

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

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