Bighorn Canyon
National Recreation Area is a national park unit established by an act
of Congress on October 15, 1966, following the construction of the Yellowtail
Dam by the Bureau of Reclamation, that straddles the border
between Wyoming and Montana. The dam, named after the
famous Crow leader Robert Yellowtail, harnesses the
waters of the Bighorn
River by turning that variable watercourse into Bighorn Lake. Source
