The Lodge
http://eoimages.gsfc.nasa.gov/images/imagerecords/51000/51587/omaha_tm5_2011213_lrg.jpg
From well north of DeSoto, Forney, Riverton and the Big Muddy River -- Omaha, Council Bluffs, all the way south past Hamburg, Iowa ... some places are 5 miles wide and 3 feet deep. Duck boats may have need...