Wo’óoseinee’, known commonly as Black Coal, (c.1840-1893) was a prominent leader of the Northern Arapaho people during the latter half of the 19th Century. Serving as an intermediary between the Northern Arapaho and the United States, he helped lead the transition from free-roaming life and armed resistance to American expansion, to alliance and eventual settlement alongside the Eastern Shoshone at today's Wind River Indian Reservation.