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, Minnesota of East Dubuque). Highway 61 and parts of Highways 2 and 53 are segments of the Lake Superior Circle Tour route that follows Lake Superior through Minnesota, Ontario, Michigan, and Wisconsin. Duluth International Airport serves the city and surrounding region with daily flights to Minneapolis and Chicago. Nearby municipal airports are Duluth Sky Harbor on Minnesota Point and the Richard I. Bong Airport in Superior. Both the Bong Airport and Bong Bridge are named for famed World War II pilot and highest-scoring American World War II air ace Major Richard Ira "Dick" Bong, a native of nearby Poplar, Wisconsin. Located