Hardest Ultra Marathon | IRONHIKE OLYMPUS MONS - SOLO | Amicalola Falls State Park, Georgia | 180 Miles | 84 Hour | Hardest Ultra on Earth | Run, Power Hike, Walk. | 72,480 feet of elevation gain and loss up and down 604 stairs, for a total of 144,960 stairs on the AT Approach Trail staircase above Amicalola Falls. This is the most elevation of any ultra under 200 miles on Earth. We are redefining race day.