The site was used in the late 19th century by the Hole-in-the-Wall Gang, a group of cattle rustlers and other outlaws that included the Logan brothers, Black Jack Ketchum, and Butch Cassidy's Wild Bunch.
Cassidy, the Sundance Kid, and other desperados met at a log cabin in the Hole-in-the-Wall country, which has been preserved at the Old Trail Town museum in Cody, Wyoming.
[1] Pinkerton detective Charlie Siringo wrote "I started for the Big Horn Basin in the vicinity of the Hole-in-the-Wall in northern Wyoming.
"[2] The area was remote and secluded, easily defended because of its narrow passes, and impossible for lawmen to approach without alerting the outlaws.
Robert Redford described the Hole-in-the-Wall as "an outlaw stronghold that deserves its name from a niche in the Great Red Wall of cliffs extending many miles to the south.