Historical Figure
Posecopsahe (Black Cat)
Posecopsahe, known as Black Cat, was the principal chief of the Mandan village of Rooptahee (the upper village) and one of Lewis and Clark's most trusted Native allies during the winter of 1804–1805 at Fort Mandan. He visited the expedition's camp frequently, sharing intelligence about regional politics, geography, and the movements of neighboring nations. Clark described Black Cat as "Grand Chief of the Mandans" and considered him the most reliable and friendly of the Mandan leaders.
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