York, participating. The group was given three choices: stay on the Washington side of the Columbia River, and be subjected to diets of fish and rainy weather, move upriver, or take the advice of the Clatsop Indians and explore the area to the south of the River. The expedition overwhelmingly decided to take the advice of the local Indians to explore the idea of spending the winter on the southern shore of the River.

Lewis decided to explore the area before moving the entire group. He and five