Retraces the Lewis and Clark journey and blends their observations of previously unknown animals with modern information about those same animals.

Describes the journey of Lewis and Clark through the western United States, focusing on the plants they cataloged, their uses for food and medicine, and the plant lore of Native American people.

Examines several aspects of the Lewis and Clark Expedition, describing the adventurers' experiences and the conditions they traveled under, and presenting illustrations and modern photos of the places they passed through.