Humboldt Mine (Edwards Mine), Humboldt Township, Marquette iron range, Marquette Co., Michigan, USA
An inactive, open-pit iron mine worked by Cleveland Cliffs. The company claims that the mine was the first processor of low-grade iron ore.
18 entries listed. 13 valid minerals.
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Locality Updated: Channing Uranium Trench, Dickinson Co., Michigan, USAFrom Travis Olds, 12th Dec 2013 05:34:18