Cliffs Natural Resources – Empire Mine – Palmer, MI Twin Ducer Rebuild Disassembled, overhauled and reassembled Twin Ducer Drive Assembly. Previous Project Return To List Next Project Mailing Address: PO Box 369Wells, MI 49894 Physical Address: 1920 20th Ave NorthEscanaba, MI 49829 Phone & Fax: Phone: (906) 789-9021Fax: (906) 789-9129