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?
Jefferson sent the Corps of Discovery to find the "most direct & practicable water communication across [the] continent." Although the Corps did not find the water route Jefferson had hoped for, they did explore 4 major rivers: the Missouri, the Columbia, the Snake, and the Yellowstone.