Hare Mountain 100

Event overview

Hare Mountain 100 is an ultrarunning event in Hagarville, Arkansas on the Ozark Highlands Trail. The 100 mile race is a point-to-point course finishing at Shores Lake Recreation Area. The event is part of UTMB index races. Registration closes October 15, 2026. Part of the proceeds go to local animal shelters and the Ozark Highlands Trail Association.

Distances

• 100 Miler - point-to-point on Ozark Highlands Trail
• 50 Miler - out-and-back from Shores Lake
• 50K - out-and-back from Shores Lake
• 25K - loop starting and finishing at Shores Lake
• Black Bear 105k - out-and-back from Shores Lake, named Black Bear 105k
• Black Bear 220 (planned for 2027)

Course and logistics

The courses use rocky, steep, and rugged hardwood, cedar and pine forests in the Boston Mountains segment. Hare Mountain reaches about 2,400 feet. Measured elevation gain for the 100 mile course is listed between 20,000 and 24,400 feet. The 25k has about 3,500 feet of gain. The 50k lists 7,200+ feet of gain; the 50 mile lists 12,000 feet of gain; the 105k lists 15,000+ feet of gain.

There are 13 aid stations and sometimes 4-12 miles between major aid stations. A satellite GPS tracking device and the course GPX file are required and will be checked at check-in. Pacers are allowed starting at around mile 17. Shuttle service is provided between Redding Campground and race start or finish. Pricing and device rental fees are published. Results from prior years show a finish rate under 38 hours below 50% for the 100 mile distance. Visit the organization's website for the most recent information.