U. S. Steel Minntac

Domestic Operations

  ¤ Clairton Works
  ¤ East Chicago Tin
  ¤ Fairfield Works
  ¤ Gary Works
  ¤ Granite City Works
¤ Great Lakes Works
¤ Lorain Pipe Mills
¤ Midwest Plant
¤ Minnesota Ore Ops
¤ Mon Valley Works

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	U. S. Steel Minnesota Ore Operations

Minnesota Ore Operations - Environmental

United States Steel Corporation
Minntac Plant
Box 417
Mt. Iron, Minnesota 55768
218-749-7589

United States Steel Corporation
Keewatin Taconite
1 Mine Road
Keewatin, Minnesota 55753
218-778-8700

Overview
U. S. Steel’s Minnesota Ore Operations, located on the Mesabi Iron Range in Northern Minnesota, include the Minntac Plant in Mt. Iron and the Keewatin Taconite Plant, 25 miles to the west. At these facilities, iron-bearing taconite rock is mined and processed into taconite pellets for use in the steelmaking process. In 2003, Minnesota Ore Operations produced 18.7 million tons of taconite pellets.