Jasper Mountain Trail Fest Marathon
Jasper Mountain Trail Fest gives Dayton a rugged full trail marathon, with two loops through Jasper Mountain Reserve and more than 5,000 feet of gain.
Marathon Scout prioritizes official race websites, registration pages, timing providers, results pages, and race-linked live tracking. Last updated July 12, 2026.
Jasper Mountain Trail Fest Marathon quick facts
- Full trail marathon scheduled for Saturday, June 20, 2026.
- 26.2 miles with more than 5,000 feet of elevation gain.
- RunSignup hosts the official registration and results destination.
- Race is staged inside Jasper Mountain Reserve near Dayton.
About the Jasper Mountain Trail Fest Marathon
Jasper Mountain Trail Fest includes a solo full marathon inside a conservation-focused trail weekend at Jasper Mountain Reserve. It is a small, rugged alternative to road racing in southeast Washington.
Jasper Mountain Trail Fest Marathon course description
The full marathon runs two passes of the reserve's trail system, combining the red, green, and black loops for 26.2 miles with more than 5,000 feet of elevation gain.
Weather for the Jasper Mountain Trail Fest Marathon
Late June near Dayton can bring warm afternoon conditions after a cooler start. Trail exposure, climbing, and descent management matter more than road-marathon pace targets.
Past Jasper Mountain Trail Fest Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Saturday, June 19, 2027 | — | — |
| 2026 | Saturday, June 20, 2026 | Completed | Open results |
| 2025 | Saturday, June 21, 2025 | Completed | Open results |
| 2024 | Saturday, July 6, 2024 | Completed | Open results |
Jasper Mountain Trail Fest Marathon FAQ
When is the Jasper Mountain Trail Fest Marathon?
The 2027 Jasper Mountain Trail Fest Marathon is on Saturday, June 19, 2027.
How do I register for the Jasper Mountain Trail Fest Marathon?
You can register for the Jasper Mountain Trail Fest Marathon at runsignup.com.
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