Hardest Ultra Marathon Relay | IRONHIKE OLYMPUS MONS - TRAIL FAMILY FLEX RELAY | Amicalola Falls State Park, Georgia | Team of 3-4 Athletes | 180 Miles | 84 Hour | Hardest Ultra on Earth | Run, Power Hike, Walk. | 72,480 feet of elevation gain and loss split across a 3 to 4 person Trail Family, up and down 604 stairs per lap for a total of 144,960 stairs on the AT Approach Trail staircase above Amicalola Falls. This is the hardest ultra on Earth, or Mars, built for your crew. We are redefining race day.