Hill to Hollow 100km

SEP
19
2026
Experience a 100km single track loop through four New York counties featuring waterfalls, high vistas, and over 10,000 feet of elevation gain.
Sat 19 Sep 2026
100 kilometers

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Hill to Hollow 100km

The Hill to Hollow 100km is a trail running event organized by Salt City Trail Racing in Fabius, New York. The course begins and ends at Spruce Pond within Morgan Hill State Forest, where camping is available for participants. The route traverses four counties and utilizes a loop consisting primarily of single-track trails.

The course follows several major trail systems, including the Onondaga Trail, the North Country Trail, the Link Trail, and the Finger Lakes Trail. Runners pass through various natural landmarks such as Mariposa State Forest, Muller Hill State Forest, and Highland Forest County Park. The terrain features misty ponds, vistas, waterfalls, and the highest point in Onondaga County. The total elevation change for the event is approximately 10,286 feet over a distance of roughly 63.7 miles.

Participants can choose between two entry formats:

  • 100 km Solo
  • 100 km Relay (teams of up to 8 members)

The event features seven aid stations located at intervals along the route. These stations provide water, hydration drinks, and various snacks such as fruit, pickles, and salty items. A limited selection of hot food is available at the final aid station. Solo runners are permitted to have a pacer after mile 33. Due to the remote nature of the course and limited mobile network coverage, participants are required to carry specific safety gear, including a navigation device with offline capabilities, a headlamp, an emergency blanket, and a waterproof shell. Visit the organization's website for the most recent information.

100 km
100km Solo
100 km
100km Relay
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