Industry
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Rice's Point separates Duluth-Superior's outer harbor from its inner harbor and stands at the center of Duluth's industrial activity. Many of the city's bridges are visible there, including the Aerial Lift Bridge, the John A. Blatnik Bridge, and the Richard Bong Memorial Bridge, with the latter two linking Duluth and Superior, Wisconsin. Since the opening of the first Soo Lock in 1855, which joined Lake Superior to the other Great Lakes, Duluth-Superior has been an important shipping center, first for forest products and later, with the opening of the Mesabi Range, for iron ore. Duluth-Superior became an international seaport in 1959 with the opening of the Saint Lawrence Seaway, whose westernmost terminus is there, making it the world's most inland seaport, 2340 miles from the Atlantic Ocean and 602 feet above sea level. Ships from all merchant nations visit the harbor, which ranks above any other inland port in annual tonnage, and the port is served by six railroads.
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Duluth, Minnesota · United States
