Race. Train. Gear up.
Saturday, June 20, 2026 Challis, ID, USA
Trail 50k

River of No Return Endurance Run 53K

Race completed
55km Distance
2,300m Elevation
6.2 Grit Score
Hardcore Level
Vertical Intensity 42 D+/km
Flat Hilly Mtn

Significant climbing. Steep sections will require power hiking.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert
👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Course Intelligence

OPENFREE MAP (LIBRE)