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![]() (Eastbound Lewis and Clark Trail; Megler, Washington State) --Photo taken by Chris Elbert Viatype:S2-U Map Location: 46.24125, -123.87362 Washington State Route 401 is a constituent of the Lewis and Clark Trail. The entire trail is named after Meriwether Lewis and William Clark, a duo who mapped the Columbia River region in the early 19th century.
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