Respuesta :
The impact of the Lewis and Clark expedition involved the considerable knowledge the explorers gained during the course of their journey regarding the geographic and topologic features of the terrain and of the peoples who populated it – in effect, the Native tribes who had proved so helpful in facilitating the group's
Explain why the Lewis and Clark expedition was important.This is the answer
Lewis and Clark explored new, uncharted territory and mapped it. They [attempted] to establish good relations with Native Americans. They explored the Columbia River. Lewis and Clark traveled align certain path, which settlers followed to the Pacific Northwest, traders and trappers traveled to this newly charted land. sorry if its not the best