Photos by Lucas Marshall - On September 24-26, 240 climbers and 60 volunteers gathered to participate at the fifth annual 24 Hours of Horseshoe Hell comp at Horseshoe Canyon Ranch, Arkansas. In this serious test of mental and physical stamina, teams of two take on the gritty sandstone of the Ozarks to climb for a continuous 24 hours. Around 12,000 routes were climbed. Alex Honnold showed up this year, climbing 130 pitches, with 5.13a being the hardest. See the full results at twofourhell.com.