Great Western Mine

Past Producer in Iron county in Michigan, United States with commodity 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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Production statistics
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10079380
MRDS ID W028639
Record type Site
Current site name Great Western Mine
Alternate or previous names Iron Star

Geographic coordinates

Geographic coordinates: -88.31948, 46.10778 (WGS84)

Site location context

Political divisions (FIPS codes)

Iron(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Crystal Falls(quadrangle 1:24,000 scale)

Iron River(quadrangle 1:100,000 scale)

Iron River(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brule(hydrologic unit)

Northwestern Lake Michigan(hydrologic accounting unit)

Northwestern Lake Michigan(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Michigan Iron

Public Land Survey System information

Meridian Township Range Section Fraction State
Michigan 043N 032W 21 NE OF SW Michigan

Comments on the location information

  • APPROXIMATE MID-POINT BETWEEN SHAFTS IN N 1/2 OF SW OF SECTION 21.

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Goethite Ore
Chert Gangue
Pyrite Gangue
Siderite Gangue
Stilpnomelane Gangue
Chlorite Gangue
Mica Gangue

Alteration

  • (Local) Chert and siderite to hematite and goethite in oxidation zones.

Mineral occurrence model information

Model code 241
USGS model code 34a
Deposit model name Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) -88.31948, 46.10778

Economic information

Controls for ore emplacement

  • Structurally controlled on synclinal flank.

Comments on the geologic information

  • WELL-BEDDED, CHERT AND SIDERITE IRON FORMATION

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1882
Year of last production 1912

Mining district

District name Menominee Range

Land status

Ownership category Private

Production statistics

  • Year 1925
    Period 1882-1925
    Material ore Fe
    Ore mined 2333487mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Fe Iron Iron 51wt-pct

Comments on the production information

  • ORE IS CRUSHED, GRADE SHIPPED. SOFT, REDDISH-BROWN, NON-BESSEMER HEMATITE. GRADE GIVEN IS AVERAGE OF ANALYSIS FIGURES FOR YEARS 1901, 1910, 1913, 1916, AND 1925.

Comments on the reserve resource information

  • REMAINING IRON FORMATION IS NOT COMMERCIALLY PRODUCIBLE

Comments on the workings information

  • UNDERGROUND BACK-STOPING; 3 SHAFTS ON 40 ACRES PARCEL & 15 HAULAGE LEVELS, GREAT WESTERN MINE USED LINCOLN MINE SHAFT FOR AIR SHAFT AND MINED THE OREUNDERGROUND BACK-STOPING; 3 SHAFTS ON 40 ACRES PARCEL & 15 HAULAGE LEVELS, GREAT WESTERN MINE USED LINCOLN MINE SHAFT FOR AIR SHAFT AND MINED THE ORE BODY AS IT EXTENDED WEST UNDER LINCOLN PROPERTY.

Comments on development

  • CORRIGAN MCKINNEY, REPUBLIC STEEL CO

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit OPENED 1882, SHIPPED THROUGH 1925 EXCEPT 1885, 1894-1895, 1897, 1914, 1916, 1920-1921, 1923-1924. MINE WAS LAST OPERATED IN 1910. 300,000 TON ACCUMULATED STOCKPILE WAS SHIPPED IN LATER YEARS. OPERATED BY CORRIGAN MCKINNEY STEEL CO, ACQUIRED BY REPUBLIC STEEL CORP. IN 1935. LEASE WAS SURRENDERED IN FEBRUARY, 1936. UNDERGROUND, WORKED BY STOPING METHOD.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1980 Yeager, Keith (Cannon, W.) Michigan Geological Survey Division
Updater 01-MAR-1997 Sutphin, D.M. U.S. Geological Survey
Editor 01-MAY-1997 Mason Jr., G.T. U.S. Geological Survey
Updater 10-AUG-2001 Anderson, Arlene (M. Gere) Michigan Department of Natural Resources

Beyond USGS

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