Are there two American explorers more famous? Were there any braver? When they left St. Louis in 1804 to find a water route to the Pacific, no one knew how extensive the Rocky Mountains were or even exactly where they were, and the land beyond was terra incognita. Lewis and Clark's Journals are the closest thing we have to a national epic, and they are magnificent, full of the wonder of the Great West. Here are the first sightings of the vast prairie dog cities; here are huge bears that keep on coming at you with five or six bullets in them, Indian tribes with no knowledge of white men, the mountains stretching for a thousand miles; here are the long rapids, the deep snows, the ways of the Sioux, Crow, Assiniboin; here are buffalo by the millions. Here is the West in its true mythic proportions. Historian Stephen Ambrose's Undaunted Courage gives a fine overview, but to hear the adventure in the two captains' own dogged, rough-hewn words, you need the complete Elliott Coues edition in three volumes. Buy all three. Dive in. Rediscover heroism.