The area was remote and secluded, easily defended because of its narrow passes, with it being impossible for lawmen to approach without the outlaws' being aware. From the late 1860s to around 1910, the Pass was used frequently by numerous outlaw gangs. Eventually it faded into history, with gangs using it less frequently. At its height, it featured several cabins that gangs used to lay up during the harsh Wyoming winters, and it had a livery stable, a corral, livestock and supplies, with each gang contributing their fair share.