
The rest of the aid stations are less than six miles apart. The longest stretches without aid are between miles 26.4 to 35.5 (9.1) miles, and 4.5 to 12.4 (7.9) miles. Thanks to the cooler temperatures and a total of eight aid stations, some 50 mile racers opt for a handheld water bottle over a large hydration vest.

Average high temperatures during January often linger in the mid-40's, while freezing temperatures are expected overnight. Since Arches Ultra occurs each winter, snow is possible though accumulation is unlikely at these elevations. In particular, the Klondike trail system is rarely visited by trail runners, though adventurer Greg Heil writes that one "could spend an entire week exploring the various loops, spurs, connections, and options in this network." With its "stacked loop" configuration, all three trail systems could instead be visited independently. While running this entire course is possible on a day other than the race, it's unlikely anyone has. Along the northernmost parts of the course, racers will be surprisingly close to the infamous Devil's Garden loop in the National Park, a classic Moab trail run with massive arches and unique sandstone fins.


With no punishing climbs ahead, the course instead meanders over several ridges and hills and awards racers with even more views of Arches National Park. In addition to the Bar M and Klonzo trail systems visited on the 50k loop, 50 mile runners continue north into the Klondike trail system.
