Lewis and Clark last expedition #mountainmen #lewisandclark #mostfamouschallenge #MissouriHistory. The Lewis and Clark Expedition (1804–1806) was a U.S. military expedition led by Meriwether Lewis and William Clark to explore the newly acquired Louisiana Purchase, map the West, and find a route to the Pacific Ocean. Commissioned by President Thomas Jefferson, | Jeff Schreckler

Did you know we have the Lewis and Clark Expedition maps? The Lewis and Clark Expedition Maps consist of 83 manuscript maps and related material detailing the route of the Lewis and Clark Expedition to the Pacific Coast and back, 1804-1806. Many were annotated during the expedition. Two of the maps were drawn based on information supplied by the Mandan leader Big White, also known as Sheheke, at Fort Mandan during the winter of 1804-1805. Seventy of the maps, several of which include information