The adventures of a three-legged snapping turtle as she travels from the headwaters to the mouth of the Mississippi River illustrate the life cycle of the turtle and the geography, history, geology, and climate of the river.The history of the Mississippi River Valley is told in text and pictures through the adventures of Minn, a snapping turtle, as she travels downstream. "Outstanding book with beautiful colored illustrations and marginal drawings similar to those in his previous books. Wide interest level including adults." -- School Library Journal, starred review