The main purpose of the Lewis and Clark Expedition, which took place from 1804 to 1806, was to explore and map the newly acquired western territory of the United States following the Louisiana Purchase.

Authorized by President Thomas Jefferson, the undertaking had a few key goals: to diagram a course to the Pacific Sea, examine the district's geology and regular assets, and record the different native societies that experienced the route. Meriwether Lewis and William Clark drove the excursion, which gave significant data about the American West. Their discoveries improved U.S. cases to the land and made them ready for future investigation and settlement, denoting a critical part of American history.