By this date in 1823, troops of the United States Sixth Infantry were back in their barracks after a punitive expedition against the Arikaras. A generation of tensions had led to the conflict. St. Louis fur traders felt entitled to go anywhere they wanted on the Missouri River, while the Arikara felt entitled to control their own territory.
The annual Green River Rendezvous is a celebration all things mountain man, a celebration of the hardy, independent souls who explored Wyoming before there were cowboys.