"The definitive study of the decisive role mountain men played in the exploration and expansion of the Western frontier. . . . Very readable and impressively detailed."—<i>New York Times Book Review</i> "[Utley's] narrative of the trappers is entrancingly delivered. . . . A magnificent read."—<i>Booklist</i> "From a veteran historian of the West, a fine account of early American explorers. . . . A broad, vividly written work of historical reconstruction."—<i>Kirkus Reviews</i> "Reads like a well-spun novel."—<i>Wild West</i> "Robert Utley does a remarkable job in chronicling this unequaled segment of American history. He brings, with his easy-to-read style, the hazy images most of us have of obscure but nonetheless fearless heroes from our past into crystal clear focus."—<i>Southwest Book Views</i> "An authentic story that is anecdotal and very readable."—Richard H. Dillon, <i>True West Magazine</i> "Utley's volume makes excellent reading. It is fast paced, entertaining, and very well researched. . . . Added to his already impressive list of books, After Lewis and Clark solidifies Utley's reputation as one of the foremost scholars and entertaining writers on the West." —Joe Knetsch, <i>Journal of America's Military Past</i>