There's some pictographs a bit farther up the canyon from Devil's Hall.
Took side trip to Devil's Hall after the hike up Guadalupe Peak. The canyon is quite unusual and dramatic. While there, I saw an animal I had never seen before: a Ringtail. I had to look it up because at the time I had no idea they were found in US.
Devil's Hall in Pine Springs Canyon is a truly beautiful place. Worth the effort to get there.