Great Eastern Mine

Past Producer in Deer Lodge county in Montana, United States with commodities Gold, Silver, Dolomite, Copper, Zinc, Stone, Crushed/Broken
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. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10070446
MRDS ID W013386
Record type Site
Current site name Great Eastern Mine
Alternate or previous names Contact Lode Diamond Placer
Related records 10256835

Geographic coordinates

Geographic coordinates: -112.97673, 46.19906 (WGS84)
Elevation 1835
Relative position ABOUT 8 KM NORTH OF ANACONDA

Site location context

Political divisions (FIPS codes)

Deer Lodge(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Anaconda North(quadrangle 1:24,000 scale)

Butte North(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

Beaverhead-Deerlodge 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 Deer Lodge

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 005N 011W 09,10 SE Montana

Comments on the location information

  • DIAMOND PLACER QUARRY AT CONFLUENCE OF LOST CREEK AND TIMBER GULCH ; INFO FROM LAND.ST :(1961)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Dolomite Secondary
Copper Secondary
Zinc Critical Secondary
Stone, Crushed/Broken Secondary

Materials information

Materials Type of material
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result AG 0.1-0.62 OZ/TON
Result AU TRACE TO 0.02 OZ/TON
Result PB 0.05 TO 0.16 %SPECIFIC GRAVITY IS 2.85 AND AVERAGE ABSORPTION IS 0.09%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Lost Creek Granite Stock
    Rock description Lost Creek Granite Stock
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Madison Limestone
    Rock description Madison Limestone

Nearby scientific data

(1) -112.97673, 46.19906

Economic information

Geologic structures

Type of structure Regional
Structure description Mount Powell Batholith
Type of structure Local
Structure description Lost Creek Granite Stock

Ore body information

  • General form TABULAR, PODS AND LENSES

Controls for ore emplacement

  • Contact Between Stock And Limestone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1894
Year of first production 1903

Mining district

District name Lost Creek District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Lord, Nettie
    Home office Two Knudson Dr., Yerington, Nv 89447
  • Type Owner
    Owner Thayer, Lyman
    Home office Rt. 1 Box 264-Ai, Anaconda, Mt 59711.
  • Type Operator
    Owner C. L. Bergloff, Riverside, Ca; L. Thayer, Anaconda, Mt

Comments on the production information

  • PROBABLE THAT TWO SMALL PODS OF ORE WERE MINED ALTHOUGH THERE IS NO DIRECT RECORD OF SHIPMENTS FROM THE PROPERTY(AU AG); LIME FROM KILN WAS USED IN CONSTRUCTION IN BOTH ANACONDA AND DEER LODGE IN THE EARLY 1900'S

Comments on the reserve resource information

  • THE WHITE COLOR AND HIGH REFLECTIVITY OF THIS MARBLEMAKES IT A GOOD CHOICE FOR USE AS A WHITE AGGREGATE.

Workings at the site

  • Type of workings Underground
    Length 100M

Comments on the workings information

  • PRINCIPAL WORKINGS CONSIST OF THREE SHORT ADITS, A SHALLOW SHAFT, AND A SHORT INCLINED WINZE OPEN PIT (SMALL) THE SEMICIRCULAR QUARRY HAS A DIAMETER OF 120 FT AN-D MAXIMUM HEIGHT OF 60 FT.

Comments on development

  • DEVELOPING IN 1978.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 84, P. 27, 28, 51, 52.

  • Deposit

    MBMG BULL 109, P. 5.

  • Deposit

    DEMA RECORDS

  • Deposit

    MBMG BULL 94, P. 10, 18-19.

  • Production

    EARLL, 1972, MBMG BULL. 84

General comments

Subject category Comment text
Deposit Discovery Year: DIAMOND PLACER 1894
Deposit First Production Year: DIAMOND PLACER 1903

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1980 Krohn, Douglas H. 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.