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Archive LECL Lewis and Clark Trail Historic Route

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 25, 2026 | Last Modified: 2017-03-01T00:00:00Z
The original NPS centerline of the historic route of the Lewis and Clark National Historic Trail, prior to the Trail's extension by Congress (P.L. 90-543, as amended through P.L. 116-9, March 12, 2019). The most current and up-to-date centerline is the Lewis and Clark National Historic Trail Congressionally Designated Route referenced here: https://irma.nps.gov/DataStore/Reference/Profile/2309966

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