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Mt. Hope Iron Mine & Plant

Past Producer in Morris county in New Jersey, United States with commodity Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10174730
MRDS ID W020292
MAS/MILS ID 0340270001
Record type Site
Current site name Mt. Hope Iron Mine & Plant
Related records 10099806

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -74.53569, 40.9331 (WGS84)
Elevation 250

Site location context

Political divisions (FIPS codes)

Morris(county)

New Jersey(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dover(quadrangle 1:24,000 scale)

Newark(quadrangle 1:100,000 scale)

Newark(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hackensack-Passaic(hydrologic unit)

Lower Hudson(hydrologic accounting unit)

Lower Hudson-Long Island(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States New Jersey Morris

Commodities

Commodity Importance
Iron Primary

Nearby scientific data

Ore Body (1) -74.53569, 40.9331
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 55S
    Thickness 6.1M
    Length 215M
    Width 1100M
    Depth to top 500M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control FOLDING
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Strike And Dip N45E:55S
    Minimum Depth to Top 0
    Date of Last Modification 820224

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Caving Methods - Sublevel Caving
Year of first production 1710
Milling method Magnetic

Mining district

District name Dover Magnetite

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Farmers Home Admimistration
    ID 2800714
    Interest 100
    Home office New Jersey
    Year 1980

Production statistics

  • Year 1946
    Description Annual Product Output 138000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Iron Iron 138000mt
  • Year 1947
    Description Annual Product Output 125000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Iron Iron 125000mt
  • Year 1948
    Description Annual Product Output 116000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Iron Iron 116000mt
  • Year 1949
    Description Annual Product Output 107000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Iron Iron 107000mt
  • Year 1950
    Description Annual Product Output 176000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Iron Iron 176000mt

Comments on the production information

  • ACTUAL MILL RECOVERY IS 89.5%.

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Measured 5079000mt ore
    Indicated 15238000mt ore
    Demonstrated 20317000mt ore
    Inferred 30476000mt ore
    Total resources 50793000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 43 wt-pct Iron Major 1977

Comments on the reserve resource information

  • DATA BASE SHOWS TEMP. SHUTDOWN, BUT U.S. BUREAU OF MINES STATISTICS SHOW 1977 PRODUCTION. ON LIST AS MT.HOE FE MINE. ADDED BY U.S. BUREAU OF MINES EFOC TO BE EVALUATION MEMO 2/21/80 DEPOSIT REPORT GIVES OWNERSHIP AS U.S. DEPARTMENT OF AGRICULTURE

Workings at the site

  • Type of workings Underground
    Overall depth 818M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SUBLEVEL CAVING 10-75
    Percent Recovery 90
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics UNKNOWN
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    1st Condition of Workings FLOODED
    Capacity 3048
    Capacity Units MT ORE/DAY
    Unit Production Cost 10.98
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 3
    Year of Information 1980

Comments on the workings information

  • TOTAL LAND HOLDING IS 743 HECTARES.

Comments on other economic factors

  • MINE TO MILL TRANSPORTATION INCLUDED IN MINE OP COST.

Reference information

Bibliographic references

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL INTERNATIONAL DIRECTORY OF

  • Reserve-Resource

    MINING. 1977, P. 207.

  • Deposit

    THE AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND

  • Deposit

    PETROLEUM ENGINEERS INC. SME MINING ENGINEERING HANDBOOK,

  • Deposit

    PORT CITY PRESS, BALTIMORE, VOL. 1, SECTION 12, 1973,

  • Deposit

    PP. 140 - 150.

  • Deposit

    BEHRE DOLBEAR & COMPANY, INC. THE MOUNT HOPE MINE. FEBRUARY

  • Deposit

    1978. (FEASIBILITY STUDY DONE FOR THE CHEMICAL BANK OF

  • Deposit

    NEW YORK. AVAILABLE UPON REQUEST, C. EVANS, U. S. AGRICUL-

  • Deposit

    TURAL DEPT., FARMERS HOME ADMINISTRATION, WASHINGTON,

  • Deposit

    D.C.).

  • Deposit

    HAUSNER, E. REVOLUTIONARY WAR IRON MINE REOPENS IN NEW

  • Deposit

    JERSEY. THE NEW YORK TIMES, OCTOBER 27, 1977.

  • Deposit

    SIMS, P. K. GEOLOGY OF THE DOVER MAGNETITE DISTRICT, MORRIS

  • Deposit

    COUNTY, N.J. U.S. GEOLOGICAL SURVEY BULL. 982 G, 1953,

  • Deposit

    PP. 291 - 295.

  • Deposit

    SIMS, P.K. GEOLOGY AND MAGNETITE DEPOSITS OF THE DOVER

  • Deposit

    DISTRICT, MORRIS COUNTY, N.J. U.S. GEOLOGICAL SURVEY

  • Deposit

    PROFESSIONAL PAPER 287, 1958, PP. 80 - 95.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-MAR-1995 Mw Dh U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 11/16/1979
MSHA mine ID2800714
Mine name (MSHA)Mt Hope Mine
Current operatorMt Hope Mining Company
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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