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Esmeralda Mine

Past Producer in Powell county in Montana, United States with commodities Gold, Silver, 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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10098032
MRDS ID DB02216
Record type Site
Current site name Esmeralda Mine

Geographic coordinates

Geographic coordinates: -112.44257, 46.68796 (WGS84)
Relative position 14.5 KM N OF ELLISTON.

Site location context

Political divisions (FIPS codes)

Powell(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Esmeralda Hill(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Helena-Lewis and Clark 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 Montana Powell

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 011N 007W 23 SW Montana

Comments on the location information

  • W FLANK OF ESMERALDA HILL. ; INFO FROM LAND.ST :(1959)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Malachite Ore
Epidote Gangue
Garnet Gangue
Marble Gangue

Alteration

  • (Local) Silicification

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
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Boulder Batholith
    Rock description Boulder Batholith
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -112.44257, 46.68796
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Controls for ore emplacement

  • Tactite Zone

Economic information about the deposit and operations

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

Mining district

District name Ophir District

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 112.78M

Comments on the workings information

  • NUMEROUS SURFACE CUTS, A 370 FT ADIT.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 98, P. 27, 30, 62

  • Production

    MBMG BULL 98, P. 62.

General comments

Subject category Comment text
Deposit TACTITE UNDERGROUND. SURFACE PITS CONTAIN LIMESTONE, ANDESITE, AND JASPER ALL OF WHICH PROBABLY CONTAIN GOLD.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1980 Elliott, James E. U.S. Geological Survey
Updater 01-AUG-1981 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site