Jasper Mountain Trail Fest
Dayton, United States • 20 Jun 2026
Event Overview
The Jasper Mountain Trail Fest is a fundraising event supporting the Jasper Mountain Reserve, an environmental non-profit organization focused on improving wildlife habitats for rare and endangered species in the Blue Mountains of southeastern Washington.
The event offers four race distances on single-track trails:
- 4-Person Relay (52.4 miles)
- Half Marathon (13.1 miles)
- Full Marathon (26.2 miles)
- 7k Family Run (4.4 miles)
The race takes place at Jasper Mountain Reserve near Dayton, Washington. The course consists of three trail loops: the Red Loop (3.3 miles), the Green Loop (4.4 miles), and the Black Loop (5.4 miles). Combined, these three loops equal 13.1 miles. The half marathon runs this combination once, and the full marathon runs it twice. The relay team members each run all three loops in a rotating sequence.
On-site camping is available for participants, with parking and campsites included in the race fee. The reserve is off the grid, so participants must bring their own food, water, and battery power sources. Portable sanitary facilities are provided.
Price increases occur on April 15, May 17, and June 13, 2026. Registering by May 31, 2026, guarantees a race t-shirt and medal. For the relay, headlamps are mandatory for any runners after 8:00 PM. Visit the organization's website for the most recent information.