Lewis & Clark State Historic Site is at One Lewis & Clark Tr. near jct. SR 3 and New Poag Rd. At the confluence of the Mississippi and Missouri rivers, the site commemorates Camp River Dubois, the Lewis and Clark Expedition's 1803-04 winter encampment. Docents, often in period clothing, show visitors around a full-scale log reconstruction of the camp.
The interpretive center features a 55-foot-long replica of a keelboat. A 15-minute DVD presentation details the preparations Lewis and Clark made here for their journey west.
Guided tours are available. Picnicking is permitted.