Saturday, August 15, 2026 Island Park, ID, USA

Trail 50k

Harriman 50k Trail Run

64 days away

50km Distance

2.5 Grit Score

Entry Level Level

Vertical Intensity 0 D+/km

Flat Hilly Mtn

This course is relatively flat and fast. Ideal for PB attempts.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

OPENFREE MAP (LIBRE)

The course is mostly rolling terrain that takes you past two lakes, through forest, and open meadows along the Henry's Fork river.