Martin Plamondon
Martin Plamondon II worked to locate the route and campsites of the Lewis and Clark Expedition and published detailed maps in three volumes.
Contributions
Lewis and Clark Route
1803–1806: Pittsburgh to Fort Clatsop and return to St. Louis
Archived 2025, updated 2025
Several researchers have contributed to the making of this Lewis and Clark Trail center line—an approximation of the route the Expedition followed in 1803–1806. Very roughly, the Ohio River section was created by Kristopher K. Townsend, the Missouri River by…
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