Library of Congress
The members of the Corps of Discovery traveled over 3700 miles between May of 1804 and September of 1806. Their journey followed the courses of the Missouri and Columbia rivers. They crossed the Rocky and Bitteroot Mountains. They saw the Pacific Ocean. Although the lands they traveled were largely unknown to Euro-Americans, many American Indian tribes had called these places home for centuries.
Personalize your trail exploration by discovering exciting trail themes with this interactive map. Travel to Lewis and Clark campsites, learn about the historic river, and dynamically display different map backgrounds of your choice. Users can:
Did You Know?
For 200 years, the Expedition journals have been the source for knowledge and understanding of the Corps of Discovery. There are, however, more than 50 tribes whose oral histories also record the events and people of the Corps.