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The Duluth, Missabe and Iron Range Railway (DM&IR) is a railroad operating in northern Minnesota and Wisconsin that hauls iron ore and later taconite to the Great Lakes ports of Duluth and Two Harbors, Minnesota. Control of the railway was acquired on May 10, 2004, by the Canadian National Railway (CN) when it purchased the assets of Great Lakes Transportation. == History == The DM&IR was formed by the merger in 1937 of the Duluth, Missabe and Northern Railway (DM&N) and the Spirit Lake Transfer Railway; the Duluth and Iron Range Rail Road (D&IR) and Interstate Transfer Railway were added in 1938. All of these had been leased by the DM&N since 1930. The D&IR was formed in 1874 by Charlemagne Tower to haul iron ore from the Minnesota Iron Co. in Tower, Minnesota, to the new Lake Superior port of Two Harbors, Minnesota. The first ore shipment from the Soudan Mine over the D&IR was on July 31, 1884. The D&IR was acquired by Illinois Steel in 1887. In 1901, Illinois Steel became part of the newly formed United States Steel Corporation (USS) and the railway became part of its holdings. The DM&N was incorporated in 1891 and the first load of iron ore was shipped to Superior, Wisconsin, in October, 1892. (The formation of the railway was necessary after the discovery of high-grade Mesabi iron ore near Mountain Iron, Minnesota by the Seven Iron Men. The D&IR was approached to construct a new branch line, but was not receptive.) The Merritt's expanded DM&N by laying track to Duluth, Minnesota, in 1893 and built an ore dock there. The Merritt's shaky financial position, caused in part by building the Duluth expansion, allowed John D. Rockefeller to gain control of the railway in 1894. In 1901, Rockefeller sold the DM&N to USS. From 1901 to 1938, the two railways were owned by USS and operated separately. Total ore hauled by the two railroads peaked in 1929 at 27.8 million tons (long tons of 2240 lb) and dropped to 1.5 million tons in 1932. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Duluth, Missabe and Iron Range Railway」の詳細全文を読む スポンサード リンク
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