Just absolutely insane what this guy was able to pull off.

The 37-year-old climbed 403,740 feet, covering 629 miles on foot and cycling 2,568 miles between the peaks. He spent 489 hours in motion in those 31 days, linking all the publicly accessible 14ers in the lower U.S. On each stage of his project, the once-in-a-generation mountaineering legend was joined by high-profile local athletes who pedaled, climbed and ran alongside him.