The Empire and Tilden mines operate separate mining pits and iron ore processing facilities, but share a single management structure. The LS&I Railroad is also part of these jointly managed operations. The Empire Mine has been mining and processing the low-grade iron ore reserves on the Marquette Iron Range since the early 1960s.
Location: Marquette Iron Range in Michigan’s Upper Peninsula in Palmer, Michigan
Workforce: 1,431 employees
Empire Mine:
Type of Ore: Magnetite
2007 Production: 4.9 million tones
Cliffs’ Ownership Share: 79%
Mittal Steel USA Ownership Share: 21%
Management: The Cleveland-Cliffs Iron Company
Tilden Mine:
Type of Ore: Hematite and Magnetite
2007 Production: 7.2 million tons
Cliffs’ Ownership Share: 85%
US Steel Canada Ownership Share: 15%
Management: The Cleveland-Cliffs Iron Company
The numbers reported above are estimated for full-year 2007
