Naatsisaan Ultra 50K
Naatsisaan's 50K arcs around Lost Mesa from Navajo Mountain High School, combining dirt road, old doubletrack and trail in Diné Bikéyah in remote Utah.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 23, 2026.
Quick facts
- Fifty-kilometer race around Lost Mesa.
- Mix of dirt road, doubletrack and trail.
- Starts at Navajo Mountain High School.
- Community event organized by NavajoYES.
2026 Naatsisaan Ultra 50K registration
Registration for the 2026 Naatsisaan Ultra 50K runs through the official registration page at runsignup.com.
About the Naatsisaan Ultra 50K
NavajoYES organizes this community ultra with Navajo Mountain High School and regional partners. The race connects endurance running with a distinctive landscape and local event program.
Course
The 50K starts at Navajo Mountain High School and uses dirt roads, old doubletrack and trails around Lost Mesa. Views from the mountain's northeast side accompany substantial climbing.
Race-day weather
Late October at Navajo Mountain can begin cold and dry, then warm under strong high-desert sun. Wind and rapid temperature changes add to the remote-course demands.
Past Naatsisaan Ultra 50K dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, October 31, 2026 | Upcoming | — |
Naatsisaan Ultra 50K FAQ
When is the Naatsisaan Ultra 50K?
The 2026 Naatsisaan Ultra 50K is on Saturday, October 31, 2026.
How do I register for the Naatsisaan Ultra 50K?
Register for the Naatsisaan Ultra 50K through the official registration link: marathonscout.com/go/naatsisaan-ultra-50k/register. It opens the race registration page at runsignup.com.
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