Buffalo Medicine was one of three principal chiefs of the Teton Sioux (Brulé Lakota) who confronted the Lewis and Clark Expedition at the mouth of the Bad River in September 1804 — the most dangerous encounter of the entire journey.
Along with The Partisan and Black Buffalo, Buffalo Medicine was present during the tense standoff where Lakota warriors seized the expedition’s pirogue and threatened violence. The crisis brought the expedition to the brink of armed conflict before Black Buffalo intervened to defuse the situation.
The Teton Sioux controlled trade on the upper Missouri and saw the American expedition as a threat to their economic dominance. The confrontation at the Bad River was not simply a misunderstanding — it reflected fundamental conflicts of interest that would shape U.S.-Lakota relations for decades.
