Dramatic paintings, maps drawn by members of the expedition, journal sketches and entries, and photographs tell one of America’s most enduring and fascinating tales. In every moment of their voyage, recounted here by historian Daniel B. Thorp, the courage and perseverance of these two visionaries shine forth. Follow the Corps of Discovery as they head across the then-frontier of St. Louis, through the plains where they meet and befriend various Indian tribes, over the Bitterroot Mountains, and then down the Snake and Columbia Rivers to the sea. Intriguing sidebars highlight lesser-known aspects of the expedition, including how Clark used the European medicine he brought along to help forge a relationship with the native peoples they encountered.