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New Jersey map showing location of the principal iron mines
- Trenton, N.J. : Geological Survey of New Jersey, 1890.
Geological Survey of New Jersey. Annual Report of the State Geologist 1890 New Jersey Geological Survey Companion text: Geological Survey of New Jersey. Annual Report of the State Geologist for the Year 1890 / John C. Smock. 305p.
- Iron, Mines and mineral resources, and New Jersey—Maps
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