On 25 April, the St. Lawrence Seaway opened, enabling the passsage for deep-draft cargo vessels along a route from Duluth, Minnesota, at the western end of Lake Superior, via the Great Lakes (Niagra, Erie, Huron, Michigan, Superior) to the Atlantic. This navigable water-way extends to 2340 miles and enables the industrial and agricultural produce of the great plains and great lakes regions to reach neighbouring cities (Chicago, Toronto, Toledo, Montreal) and the wider world. Major commodities shipped include Canadian iron ore and U.S. and Canadian grain. The Seaway itself was constructed by U.S. and Canadian investment between 1954 and 1959 and amounts to 186 miles of locks and canals along the St. Lawrence river between Montreal and Lake Ontario, providing the crucial navigable link.
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Citation: Richert, Lucas Paul. "St. Lawrence Seaway". The Literary Encyclopedia. First published 01 November 2008 [https://www.litencyc.com/php/stopics.php?rec=true&UID=5650, accessed 26 November 2024.]