Park Planning

Documents of Interest

The Lewis and Clark National Historic Trail extends 4,900 miles from Pittsburgh, Pensylvannia to Astoria, Oregon. Partners along the Lewis and Clark Trail and the public may find relevant planning information in the documents below.

Foundation Document

Find an overview of the Lewis and Clark National Historic Trail's mission and why it was founded.

High Potential Historic Sites

This review of High Potential Historic Sites was published in 2023.

Long Range Interpretive Plan

Partners can consult this plan for Lewis and Clark National Historic Trail's interpretation, education, and outreach.