P.O. Box 7458
Fort Smith, MT 59035
(Also in Wyoming)
Phone: 406-666-2412
Fax: 406-666-2415

Bighorn Lake, formed by Yellowtail Dam on the Bighorn River, extends 71 miles, including 55 miles through spectacular Bighorn Canyon (view a park map. 145 K). The Crow Indian Reservation borders a large part of the area. Established by act of Congress Oct. 15, 1966.

Acreage - 120,296.22

Federal: 68,181.59

Nonfederal: 51,811.63