Eager to return to the United States after their long journey, Lewis and Clark were forced to wait nearly six agonizing weeks (from May 14 to June 10, 1806) for snow in the mountains along the Lolo Trail to melt. During this time, many of the Nez Perce visited the expedition, and Lewis takes full advantage by making many notes on their manners and customs. He also administers medicine to many of the sick members of the tribe, who were brought to him for help. Finally, on the 10th of June, the expedition departs Long Camp. Their first stop on the way home is the quawmash fields where they intended to acquire as much meat as possible before attempting to re-cross the Bitterroot Mountains.
The Lewis and Clark Long Camp is marked by interpretive signs along U.S. Highway 12, 1 mile east of Kamiah. The campsite itself is located two miles distant on the Clearwater River on privately owned land.