Hell Creek Half & 50K

Hell Creek Half & 50k - August 29, 2026

• 50k
• Half Marathon

The event takes place on the Switchgrass Mountain Bike Trail at Wilson State Park, with start and finish at the Switchgrass trail head in the Hell Creek area (GPS N38°54.965 W98°30.549). The trail is single-track, rugged but described as runnable, with few trees and frequent views of Wilson Lake.

Elevation gain and loss is approximately 3000 ft for the 50k and 1300 ft for the half marathon. The half marathon is a single roughly 13-mile loop that begins with about 0.33 miles on pavement. The 50k follows a roughly 19-mile loop and then the half marathon loop, totaling close to 32 miles.

The course will be marked with ribbons, flags, and wrong-way signs. There are two staffed aid stations at the start/finish and at Hell Hill, plus an unmanned water and Proxima C station at mile 5 and another around mile 13 on the Hell Creek Loop for 50k runners. Aid stations include typical ultra food, water, soda, and Proxima C Endurance Fuel. Drop bags are allowed at Hell Hill and the start/finish.

Rules note that pacers are not allowed, crew may assist only at the start/finish, and runners must carry a means to hold water. Minimum age is 16; runners under 18 need a guardian waiver. There are no refunds or bib transfers. Visit the organization's website for the most recent information.