Hill to Hollow 100km

Hill to Hollow 100km

Hill to Hollow 100km is a trail ultramarathon organized by Salt City Trail Racing in Tully, NY. The course begins and ends in Morgan Hill State Forest, where camping is available. The route crosses four counties and follows nearly all single-track trail, including long sections of the Onondaga Trail and parts of the Finger Lakes Trail and North Country Trail.

The course passes Highland Forest County Park, DeRuyter Reservoir, Muller Hill State Forest, Mariposa State Forest, and Chippewa Falls, and reaches the highest point in Onondaga County on single-track mountain bike trails. The distance is approximately 63.7 miles with about 10,286 feet of elevation change. The event has a hard cutoff of 20 hours and seven aid stations (excluding start/finish).

Aid stations will offer water, Skratch, ice if needed, fruit, pickles, PB&J, chips, pretzels, cookies, candy, and limited hot food at Aid Station 7. All runners receive SCTR socks and prizes are awarded to top finishers and the fastest relay team. Pacers are permitted for 100 km solo runners after about mile 33; only one pacer at a time and pacer or relay changes are allowed only at aid stations. Crew access is generally available but some roads may not suit low-clearance vehicles; crew assistance rules apply as noted for 2025.

Required gear includes a charged cell phone with race director number saved, navigation device with offline course GPS, headlamp and spare batteries, reflective vest, emergency blanket, waterproof shell with hood, water filtration, at least 800 mL liquid capacity, and a minimum 400 kcal food reserve. Visit the organization's website for the most recent information.