Northshore Mining AK Steel
Northshore Mining Northshore Mining (NSM), which originally operated as Reserve Mining Company, was the first taconite processing facility in North America when it opened in 1956. It was purchased by Cyprus Minerals in 1989, and Cleveland-Cliffs became the sole owner of the property in 1994. Northshore Minings Peter Mitchell Mine is located in Babbitt and the taconite is transported 47 ...
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