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
Superior, Wisconsin this water trail reach Lake Superior, while the downstream traveler could use it to go southwest to the Gulf of Mexico, unhindered by portages, by using the St. Croix and Mississippi rivers. This waterway was also an important route in the Wisconsin fur trade, particularly when the French War with the Fox Indians closed the more southern routes. In the nineteenth century, spurred by the prospect of lucrative shipping on the Great Lakes and exploitation of the iron ore industry, businessmen from Chicago and St. Paul, Minnesota laid claim to the site which became the city of Superior. They planned