Warren's 1857 map marks the Nez Perce country on the Clearwater and Salmon. The Lolo Trail across the Bitterroots was a Nimiipuu route to the buffalo country east of the mountains — the one Lewis and Clark followed in 1805 with Nez Perce help.
Nez Perce National Historical Park has sites across the region. Where does the modern highway over Lolo Pass follow the old trail, and where does it leave it?
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