The Lewis and Clark Expedition set out from Camp Dubois in Illinois on this date. They entered the mouth of the Missouri River and regrouped at St. Charles before undertaking the rest of the expedition, which would last two years. On the evening prior to departure, William Clark wrote “Be prepared” in his journal.
The Lewis and Clark Expedition, officially known as the Corps of Discovery, was an exploration mission undertaken by Meriwether Lewis and William Clark from 1804 to 1806. Commissioned by President Thomas Jefferson, the primary goal of the expedition was to explore the newly acquired Louisiana Territory, map the region, find a practical route across the western half of the continent, and establish an American presence before European powers attempted to claim it.
On May 14 the Corps of Discovery set out from Camp Dubois, located near present-day Hartford, Illinois, just across the Mississippi River from St. Louis. They ascended the Missouri River, which served as their primary route of travel. At that time the westernmost settlement established by people of European descent was at La Charrette, across the river from where Washington is today in Warren County.
During their time in present-day Missouri, the expedition focused on documenting the region’s natural resources. They meticulously recorded observations about the flora and fauna, some of which were previously unknown to science. The Corps discovered various animal species, including the prairie dog and the coyote, and collected specimens of plants that were later studied and classified.
In addition to their scientific endeavors, the expedition was also tasked with mapping the Missouri River and its tributaries. The maps created by Lewis and Clark were crucial for future settlers and explorers, providing valuable information about the geography of the western United States. The stretch of their journey through Missouri set the stage for the subsequent exploration and settlement of the vast territories to the west.
The journey through Missouri was a critical early phase of the Lewis and Clark Expedition, laying the groundwork for their successful exploration of the American West. Their efforts contributed significantly to the understanding of the region’s natural and cultural landscapes and helped establish the United States’ presence in the newly acquired territories.
