Great Lakes Waterway River between Huron and Erie. Usually, one or more U.S. Coast Guard icebreakers help keep the water passage open for part of the fall and early winter, although shipping usually ceases for two to three months thereafter. The Great Lakes Waterway is co-administered by the governments of Canada and the United States of America. The waterway allows passage from the Atlantic Ocean to the inland port of Duluth on Lake Superior, a distance of and to Chicago, on Lake Michigan, at . Together with the Saint Lawrence Seaway, the Waterway allows both ocean-going vessels and the ore, grain and coal-bearing
Duluth-Superior Dukes (1956–70) Sox. From 1968 to 1970, they were affiliated with the White Sox alone. The Dukes played their home games at Wade Stadium, located at 101 N. 35th Avenue West Duluth, Minnesota 55807. The stadium, built in 1940 is still in use today as home to the Duluth Huskies. Duluth-Superior Dukes (1956–70) The Duluth-Superior Dukes were a minor league baseball team , based in Duluth, Minnesota that played from 1956 to 1970 in the Northern League. The franchise formed in 1956 as the Duluth-Superior White Sox after a merger of the Duluth Dukes and the Superior Blues. The team name was