Gogebic Deposit

Prospect in Iron county in Wisconsin, United States with commodities Iron, Water, Free
Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10181288
MRDS ID W062305
MAS/MILS ID 0550510012
Record type Site
Current site name Gogebic Deposit
Alternate or previous names Gogebic Range Magnetite Taconite, Penokee Range Magnetite Taconite, Magnetite Taconite Gogebic Range
Related records 10096663

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -92.95855, 47.45999 (WGS84)
Elevation 480
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

St. Louis(county)

Minnesota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hibbing(quadrangle 1:24,000 scale)

Hibbing(quadrangle 1:100,000 scale)

Hibbing(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Louis(hydrologic unit)

St. Louis(hydrologic accounting unit)

Western Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Wisconsin Iron

Public Land Survey System information

Meridian Township Range Section Fraction State
4th Principal 045 N 001 W 34 NWNWNE Wisconsin

Commodities

Commodity Importance
Iron Primary
Water, Free Tertiary

Materials information

Materials Type of material
Magnetite Unknown
Minnesotaite Unknown
Quartz Unknown
Stilpnomelane Unknown

Nearby scientific data

Ore Body (1) -92.95855, 47.45999

Economic information

Ore body information

  • Strike N60E
    Dip 60N
    Thickness 182M
    Length 11890M
    Width 210M
    Area 2025HA
    Depth to top 6M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control OTHER
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N60E:60N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 6
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2025
    Date of Last Modification 810616

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1848
Mining method Open Pit
Milling method Magnetic

Mining district

District name Lake Superior

Mineral rights holdings

Type of mineral rights Private Lease
Type of mineral rights Fee Ownership
Type of mineral rights Other

Land status

Ownership category Mixed

Ownership information

  • Type Owner
    Owner La Pointe Iron Comp.
  • Type Owner-Operator
    Owner U.S. Steel Corp.
  • Type Operator
    Owner Inland Steel

Comments on the production information

  • PRECISE IRON RECOVERY IS 61.7 PERCENT.

Comments on the reserve resource information

  • MARSDEN HAS EVALUATED USING SAME COSTS AS MESABI. DATA BASE SHOWS AS A DEVELOPED DEPOSIT. OW-LA POINTE IRON CO., OW-OP:U.S. STEEL OP: INLAND STEEL.

Workings at the site

  • Type of workings Surface
    Area 398HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BENCH (BERM)
    Swell Factor .68
    Percent Waste Rock 50.7
    Avg. Overburden Thickness 6
    Primary Material Cover SAND, GRAVEL
    Percentage 95
    Secondary Material Cover HARD ROCKS
    Percentage 5
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 57
    Capacity 77700
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 23899
    Unit Production Cost 2.09
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1981

Comments on the workings information

  • TOTAL LAND HOLDING IS 3513 HECTARES.

Reference information

General comments

Subject category Comment text
Deposit INFORMATION BASED ON DATA SUPPLIED BY RALPH W. MARSDEN UNDER FEDERAL BUREAU OF MINES GRANT #G0155058. THE PLANT CAPACITY WAS 28360000 MTPY. "OTHER" IN TYPE OF MINERAL HOLDINGS IS COUNTY LAND.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-MAR-95 Dgh, Jjg U.S. Bureau of Mines

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.