 The Crow flows through Greenfield, Hanover, St. Michael, Otsego and Dayton; it enters the Mississippi River from the south at the common boundary between Otsego and Dayton.The Crow River, North Fork flows southeast from Lake Koronis for about 125 miles until it joins the Mississippi River at Dayton.The roughly 40 mile stretch from upstream of Rockford to the Mississippi is considered to be the best for canoeing.