Hell’s Half Acre is a unique natural setting covering approximately 320 acres. Viewed from a point of maximum depth, its walls and pinnacles show soft and varied hues comparable to the Grand Canyon of the Yellowstone. Investigation has confirmed that in former days the Indians drove great herds of buffalo into this depression for slaughter. Flint arrowheads and buffalo bones have been found here. A detachment of Captain B.L.E. Bonneville’s party visited this site in July 1833. This area has been dedicated to Natrona County by the Federal Government.