This segment of the Great Loop is a trip through America’s heartland for more than 1,000 miles on the inland rivers. Chicago is the last big city you’ll see until you reach the Gulf of Mexico several weeks later. Many areas will be rather remote, and all but very fast boats will likely have to spend a few nights at anchor on this segment because of the lack of marinas. This segment includes the western-most point on the Great Loop as well as the longest distance between fuel stops. There are several locks along the way operated by the US Army Corp of Engineers.