Before the restaurant and other buildings were demolished, this is what it looked like. The article states that part of the movie, Starship Troopers (1997) was filmed at this site. Here is a satellite image of what the park looked like before the buildings were torn down.
HELL'S HALF ACRE
This unique setting of natural beauty covers 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.
link: index to photographs