How did Lewis and Clark's expedition help later pioneers?

Lewis and Clark's expedition provided invaluable information about the geography, Natural Resources, and indigenous peoples of the western United States. Their detailed maps and journals documented the terrain, waterways, and potential routes for future settlers and explorers. This knowledge facilitated westward expansion, helping later pioneers navigate and settle the land more effectively. Additionally, the expedition fostered a sense of American curiOSity and ambition regarding the vast territories beyond the Mississippi River.