In 2009, Loreen Niewenhuis walked completely around Lake Michigan. This book chronicles that journey, a 1,000-mile walk around the world's fifth-largest lake. The book explores both the geology of the lake and the measure of a person--a woman, married, mother of two sons (who joined her for portions of the walk). But most of the walk was done solo, an adventure in discovery of self and place. Niewenhuis conveys a sense of the magnitude of the lake she loves, a place so elemental to the four Midwestern states that form its shores. From a ground-level perspective, the book explores the natural and human history of Lake Michigan . . . and raises important questions about preserving our wild places and protecting fragile ecosystems on which we all depend.