Undaunted CourageIn Undaunted Courage by Stephen E. Ambrose, readers are transported to the early 19th century, embarking on a monumental journey through the uncharted expanses of North America. The narrative chronicles Captain Meriwether Lewis's epic trek across the Great Plains and into the formidable Rocky Mountains. Selected by President Thomas Jefferson in 1803, Lewis was tasked with leading this military expedition into what was then considered hostile