In the specific year you state was four years before Lewis and Clark started their expedition. They would not have survived if they did not have help from mos

In the specific year you state was four years before Lewis and Clark started their expedition. They would not have survived if they did not have help from most of the natives they met along the way, one of the main objectives was to document all the natives that lived there. That would have been kind of weird goal if it was all open space.