Jasper Mountain Trail Fest

Jasper Mountain Trail Fest : Jasper Mountain Reserve, Dayton WA

Jasper Mountain Trail Fest is a trail running event held at Jasper Mountain Reserve in Dayton, Washington. The event uses three single-track loops on the reserve: Red Loop (3.3 miles), Green Loop (4.4 miles), and Black Loop (5.4 miles). All three loops combined equal exactly 13.1 miles.

The 2026 program includes four race options:

• Relay: 4-person team, total distance 52.4 miles.
• Full Marathon: 26.2 miles, 5,140 feet elevation gain.
• Half Marathon: 13.1 miles, 2,570 feet elevation gain.
• Family Run: 4.4 miles on the Green Loop, minimal elevation gain.

Relay teams consist of four people sharing one assigned bib on an adjustable belt. Each runner completes assigned loops so that every team member runs all three loops. Race timing provides team results and individual loop splits. Aid stations are placed at multiple mile markers on the half and full marathon courses.

On-site camping is available within the reserve and is located on the race course; parking and campsites are included in the race fee. The reserve is off the grid: there is no water or electricity on site. Portable sanitary facilities will be provided. Camp-fires are allowed only in one designated area; loud noises and unleashed dogs are not permitted. Registration opens 21 June 2025 and closes 1 July 2025. This is a USA Track & Field sanctioned event. Visit the organization's website for the most recent information.