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Penokee Deposit

Prospect in Ashland county in Wisconsin, United States with commodity Iron
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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. Workings at the site
  15. Links to other databases
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10204529
MAS/MILS ID 0550030011
Record type Site
Current site name Penokee Deposit
Alternate or previous names Penokee Range Magnetite Taconite, Gogebic Range Magnetite Taconite, Magnetite Taconite Penokee Range

Comments on the site names

  • IN PENOKEE-GOGEBIC RANGE.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -90.65343, 46.2972 (WGS84)
Elevation 510
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Ashland(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mellen(quadrangle 1:24,000 scale)

Ironwood(quadrangle 1:100,000 scale)

Ashland(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Bad-Montreal(hydrologic unit)

Southwestern Lake Superior(hydrologic accounting unit)

Western Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Wisconsin Ashland

Public Land Survey System information

Meridian Township Range Section Fraction State
4th Principal 044 N 002 W 18 E2NENE Wisconsin

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Amphibole Unknown
Cummingtonite Unknown
Magnetite Unknown
Minnesotaite Unknown
Pyroxene Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -90.65343, 46.2972
ListMap

Economic information

Ore body information

  • Strike N65E
    Dip 60N
    Thickness 320M
    Length 19320M
    Width 420M
    Area 3000HA
    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 N65E:60N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 6
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 3000
    Date of Last Modification 810616

Comments on the geologic information

  • STILPNOMELANE ALSO PRESENT BUT IS NOT ON MINERAL DATA SET.

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 Fee Ownership
Type of mineral rights Private Lease

Land status

Ownership category Private

Comments on the production information

  • PRECISE MILL RECOVERY IS 61.7 PERCENT.
  • BERKSHIRE MINE (SEQ. NO. 055-003-0001) IS LOCATED WITHIN THE DEPOSIT AREA. IT IS A PAST PRODUCER. IT PRODUCED A TOTAL OF 3512 METRIC TONS OF CONCENTRATE FROM 1922 TO 1924.

Workings at the site

  • Type of workings Surface
    Area 812HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BENCH (BERM)
    Swell Factor .68
    Percent Waste Rock 56.3
    Avg. Overburden Thickness 6
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARD ROCKS
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 57
    Capacity 72318
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 74903
    Unit Production Cost 2.47
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1981

Comments on the workings information

  • DEPOSIT IS LOCATED ON THE GOGEBIC RANGE WITHIN THE LAKE SUPERIOR MINING DISTRICT. EXACT LAND HOLDINGS OF THE COMPANIES WAS NOT AVAILABLE.

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 DEPOSIT IS ALSO LOCATED ON THE FOLLOWING MAPS : MARENGO (15 MIN. QUAD.) AND MT. WHITTLESEY (7.5 MIN. QUAD.). THE PLANT CAPACITY WAS 26396000 MTPY.

Reporter information

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

Beyond USGS

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

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