Course & Aid Stations

1 Loop =  ~20mi with ~2,800ft of elevation gain
100mi = 5 Loops & ~14,000ft of gain with a 33 hour time limit
100k = 3 Loops & ~8,400ft of gain with a 23 hour time limit


Check out the course on Strava!

And here on the Trail Run Project!

(Click on map below to enlarge and to be able to zoom in)


  • There are 4 aid stations that you pass through a total of 5 times per loop.
  • The furthest distance between aid stations is approximately 6.3mi and the shortest stretch is approximately 1.9mi.
  • Crew & pacer access is ONLY allowed at:
    • Start/Finish – Louis Murphy Park (Google Maps)  42.480704, -90.665332
    • AS #3 – EB Lyons (Google Maps) 42.459300, -90.665317
  • NO AID is to be provided by crew (including caching) outside of the two designated aid stations. The park is closed to the public overnight and we have special permission to hold this race. Our rules regarding crewing exist primarily for runner safety especially during the overnight hours as well as to prevent congestion/parking issues that would damage our strong relationship with the city and park staff. Breaking these rules is grounds for runner disqualification and we take it very seriously.
  • The first hard cutoff is for the start of a runner’s final loop – 12am/midnight for 100k’s 3rd loop & 11am Saturday for 100mi’s 5th loop).
  • Each on-course aid station for the last loop (100mi only) will have a hard cutoff.
    • Sauk Fox OUT (mile 85.0) – 12:20PM
    • Cattesse (mile 91.3) – 2:00PM
    • Sauk Fox IN (mile 93.1) – 2:35PM
    • EB Lyons (mile 96.1) – 3:30PM
    • Finish Line (mile 101.0) – 5:00PM

All aid stations will be manned by incredibly helpful volunteers and fully stocked with a minimum of water, Tailwind (100cal/12oz ratio), soda, salty & sweet snacks, fresh fruit, hot and cold food and basic first aid. Trust us when we say, we are going to take GOOD care of runners but if you do have strict dietary requirements or specific medical conditions, we advise packing needed items in drop bags or carrying them with you.

Drop bag service is provided at ALL 4 aid stations. Drop bags must be labeled with bib # and either a K or M for race distance (ex. #35M or #116K) as well as the name of the aid station and dropped off at the designated area at the race start (Friday) no later than 7:15AM. We don’t want to set any drop bag size restrictions so please just use common sense and keep them reasonably sized and in sturdy materials.




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