The Nez Perce Trail passed through the Bitteroot Mountains
Lewis became a depressed alcoholic after many failed attempts at marriage. He committed suicide in 1809.
Clark offered to educate Sacagawea's son if she and her husband lived on a farm he'll give them
Many people have said different things about York's whereabouts. Some say he died shortly after being freed, others say he lives with the Natives.
Clark got married and served as Superintendent for Indian Affairs in St. Louis. He led a happy life and died in 1838.
Lewis and Clark discovered many new plant and animal species and land forms. For example, the beaver and bitter root were discovered along with the Northern Nez Perce Trail. Beavers opened up jobs for trappers and trapping industries, the cottonwood made wagons possible, and the Nez Perce Trail was a way to pass through the Bitteroot mountains.
After the expedition, Lewis and Clark both went to Washington to claim their reward for completing the expedition. They went their separate ways from there. 3 years later, Sacagawea left her son in Clark's care and went on a trapping expedition. She gave birth to her daughter and died some time later in 1812. No one knows what happened to York. He was freed and not mentioned until his "death".