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Dawsonville, GA

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.

  • Date
  • First start11:59 PM EST
  • Location418 Amicalola Falls Lodge Rd, Dawsonville, GA 30534
  • DistancesUltra
  • SurfaceTrail

Bib Scout Report

  • Trail
Events, current fees, and scheduled price increases
EventDistanceStartCurrent feeNext increase
Olympus Mons Ultra - powered by Skratch Labs ® - Trail Family (Team of 3 or 4)Ultra11:59 PM EST$2520—

Scouted from the official RunSignup listing. Fees shown exclude processing fees.Merit badges are detected from the organizer’s description. Dates, courses, and prices can change — confirm on the registration page.

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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. · Dawsonville, GA

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Race guide

The IronHike Appalachian Trail Approach Series is a multi-day elevation challenge at Amicalola Falls State Park in Dawsonville, Georgia, where participants repeat a 1.5-mile lap of 604 stairs up and 604 stairs down. There are seven events, from the 12-hour, 16.5-mile Kuwohi to the 84-hour, 180-mile Olympus Mons Ultra, and most can be done solo or as a team. It is not scored as a race: there is no podium and there are no age-group awards.

Read the full IronHike Appalachian Trail Approach Fall Series 2026 guide →

About 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.

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