NEW – Iron Mountain Iron Ore A new page has been added for information regarding Iron Ore at Iron Mountain, Mich. Hamilton Mine’s Engine House No. 2 adjacent to the former M&N main line at Iron Mountain, Mich., on 26 June 2021. Photograph by Tom Bruss.Miners’ Hall adjacent to the former MILW main line at Iron Mountain, Mich., on 26 June 2021. Photograph by Tom Bruss.Miners’ Hall adjacent to the former MILW main line at Iron Mountain, Mich., on 26 June 2021. Photograph by Tom Bruss. You Might Also Like Railroad History Update – New Green Bay to Ontonagon Pages March 8, 2020 UPDATE – M&N Main Line – Schwartzburg to Hilbert March 14, 2021 UPDATE – Our 2023 Open House December 11, 2023