Undaunted Courage by Stephen E Ambrose

Undaunted Courage, written by Stephen Ambrose, is a 1996 biography of Meriwether Lewis, William Clark, and the Lewis and Clark Expedition. The book is based on journals written by Lewis and Clark, along with other members of the expedition, and also offers additional insight into the travelers and their thoughts.

From the bestselling author of "D-Day" comes the definitive book on the most momentous expedition in American history--and one of the greatest adventure stories of all time. "An adventure filled with high romance and personal tragedy, involving the greatest expedition ever undertaken in the history of this country".--Alexander Theroux, "Chicago Tribune". Illustrations throughout. Maps.