From the author of Our Natural History: The Lessons of Lewis and Clark, and with an introduction from Stephen E. Ambrose, author of the New York Times bestseller, Undaunted Courage Afterward by Robert Redford, and an Afterward by Robert Redford. The 1804-1806 Missouri River journey of Lewis and Clark in search of an all-water route to the Pacific Ocean was the most important expedition in American history. When it was finished, the country and the world were forever changed. Now, renowned biologist and author Daniel B. Botkin retraces the Missouri River passage of that historic journey in the modern world by following the route of Lewis and Clark, guiding readers to nearly 50 legendary sites of historical and environmental importance--with driving directions all the way from the river banks of St. Louis to the river"s headwaters in Montana--in a lively, compelling book that brings this voyage of discovery to life. * Illustrated throughout.