The story of the most important American exploration expedition in American history and the participants in it.
Part 1 covers the expedition up to the headwaters of the Missouri River
Part 2 covers the meeting with the Shoshone, the treacherous crossing of the mountains, the downstream rush to reach the Pacific Ocean, and the ambitious explorations of the return trip.
John Logan Allen
Himself - Geographer
Stephen E. Ambrose
Himself - Historian
Gerard Baker
Himself - Mandan-Hidatsa
Kevin Conway
Patrick Gass
Erica Funkhouser
Herself - Writer
William Least Heat-Moon
Himself - Writer
Gene Jones
Joseph Whitehouse
Mylie Lawyer
Herself - Descendant of Twisted Hair
James P. Ronda
Murphy Guyer
William Clark (voice)
Hal Holbrook
Narrator (voice)
Sam Waterston
Thomas Jefferson (voice)
Adam Arkin
Merriwether Lewis (voice)
Matthew Broderick
John Ordway (voice)
Dayton Duncan
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