Undaunted Courage was excellant, I agree. The broad skills those guys possessed really makes you appreciate how enlightened men had become at that time. Botany, drawings, navigation, mapping, military, medical and even good ol' survival skills. Amazing to think they had to tug that boat over the continental divide. Lastly, that story gives life to a part of the country (save the rockies & the west coast) that I wouldn't otherwise think about much.
Going cross country over that westerb route is on my retirement bucket list.