 The line was resurveyed to correct various jogs as disputes were to continue over the line into the 20th century.In addition to his surveys in Missouri, Sullivan also surveyed a strip of land on either side of the Chicago River extending from Lake Michigan to the Fox River (Illinois River tributary).This was to ultimately clear the way for the Illinois and Michigan Canal and eventually the Chicago Sanitary and Ship Canal connecting Lake Michigan, Chicago, Illinois to the Illinois River and ultimately the Mississippi.