Northshore Mining, which originally operated as Reserve Mining Company,
was the first taconite mining and processing facility in North America
when it opened in 1955. The facility was reopened at reduced capacity in
1989 by Cyprus Minerals Company.
Northshore Mining Company, a wholly owned
subsidiary of Cleveland-Cliffs Inc, acquired Northshore in 1994. Cleveland-Cliffs subsidiaries also manage
four other iron ore mines in
North America.
Northshore Mining, which originally operated as Reserve Mining Company,
was the first taconite mining and processing facility in North America
when it opened in 1955. The facility was reopened at reduced capacity in
1989 by Cyprus Minerals Company.