Lewis and Clark Expedition

Historical Overview

The Lewis and Clark expedition was a major American exploration journey conducted from 1804 to 1806 under the orders of President Thomas Jefferson. Led by Meriwether Lewis and William Clark, the expedition aimed to explore the newly acquired Louisiana Territory and search for a possible water route to the Pacific Ocean. During their travels, the expedition mapped vast areas of the North American West, documented numerous plant and animal species, and established contact with many Indigenous peoples. The group faced harsh weather, difficult terrain, and supply challenges throughout the journey. The expedition is considered one of the most important exploration missions in United States history and played a major role in the nation’s later westward expansion.