Norwood Mine

Past Producer in Baraga 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. Host and associated rocks
  10. Nearby scientific data
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10079319
MRDS ID W028541
Record type Site
Current site name Norwood Mine
Alternate or previous names Northrup

Geographic coordinates

Geographic coordinates: -88.1706, 46.53806 (WGS84)

Site location context

Political divisions (FIPS codes)

Baraga(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Three Lakes(quadrangle 1:24,000 scale)

L'Anse(quadrangle 1:100,000 scale)

Iron River(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Michigamme(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 Baraga

Public Land Survey System information

Meridian Township Range Section Fraction State
Michigan 048N 031W 22 Michigan

Comments on the location information

  • CENTER POINT OF MINED AREA, SE - SW OF SECTION 22 .

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Limonite Ore
Grunerite Ore
Chert Gangue
Magnetite Gangue
Hornblende Gangue
Actinolite Gangue
Garnet Gangue
Mica Gangue

Alteration

  • (Local) Replacement of cherty beds by iron oxide and alteration of fe-silicates and carbonates to iron oxides

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Rock unit name Bijiki Iron-Formation
    Rock description Bijiki Iron-Formation
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) -88.1706, 46.53806

Economic information

Controls for ore emplacement

  • Upward facing or open structures of folding or faulting

Comments on the geologic information

  • WEAKLY MAGNETIC, GRUNERITE-CHERT 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 1887
Year of last production 1888

Mining district

District name Marquette Range

Land status

Ownership category Private

Production statistics

  • Year 1888
    Period 1887-1888
    Material ore Fe
    Ore mined 5939mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Fe Iron Iron 48wt-pct

Comments on the production information

  • LEAN ORE, SOFT, NON-BESSEMER LIMONITE. GRADE REPORTED IS AN APPROXIMATION FROM OTHER NEARBY BIJIKI-MEMBER MINES WITH PRODUCTION FIGURES AVAILABLE. DRILL HOLE DATA AVAILABLE (SEE REFERENCES)

Comments on the reserve resource information

  • MOST OF REMAINING ORE IS IN GRUNERITE FORM

Comments on development

  • OPEN 1887M ALIAS NORTHUP, JOINED WITH BEAUFORT FOR A TIME. AFTER 1952 MINE WAS PART OF CLEVELAND CLIFFS IRON CO. OHIO MINE OPERATION

Reference information

Bibliographic references

  • Deposit

    KLASNER, J. S., AND CANNON, W. F., 1978 , BEDROCK GEOLOGY OF THE SOUTHERN PART OF THE MICHIGAMME AND THREE LAKES QUADRANGLES, MARQUETTE AND BARAGA COUNTIES, MICHIGAN, USGS MAP 1 - 1078 .

  • Deposit

    LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED. ): CLEVELAND, OHIO, P. 115 .

  • Deposit

    SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND-CLIFFS IRON CO, OHIO MINE EXPLORATION, 1950 - 1951 , SECTION FILES OF THE GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES.

  • Deposit

    JOHNSON, A., 1998, INVENTORY OF UNDERGROUND MINES, BARAGA COUNTY, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.

General comments

Subject category Comment text
Deposit OPENED 1887 . AN OLD EXPLORATION. SHIPPED 1887 - 1888 AND THEN ABANDONED. ONCE PART OF THE NORTHRUP PROPERTY WHICH INCLUDED THE BEAUFORT MINE. PROPERTY IS NOW LOCATED WITHIN BARAGA STATE FOREST BOUNDARIES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 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 06-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.