Presents an account of the two-and-a-half-year expedition that yielded vast knowledge of the West, geographically and scientifically.

Offers a brief introduction to the lives and careers of explorers William Clark and Meriweather Lewis.

Brief text, sidebars, labeled illustrations, and humorous cartoons depict explorers Lewis and Clark, outlining their routes, personal experiences, and encounters with the Native Americans.

Examines the lives and accomplishments of Meriwether Lewis and William Clark, discussing their early years in late eighteenth-century America, and telling of their grand exploration of the country's expanding frontier on a mission for President Thomas Jefferson.