100mi
Ultra-Trail du Mont-Blanc
171km Distance
10,000m Elevation
10 Grit Score
Elite/Extreme Level
Vertical Intensity 58 D+/km
Significant climbing. Steep sections will require power hiking.
The Aid Station
Course-specific beta from the community
This is a mountain course. Poles are highly recommended for the sustained climbs.
With mountain terrain, choose a shoe with aggressive lugs (5mm+) for optimal performance.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Course Intelligence
OPENFREE MAP (LIBRE)About
The world's most prestigious ultra trail race, circling Mont Blanc through France, Italy, and Switzerland.
Highlights
- 3 countries in one race
- 10,000m elevation gain
- Iconic Chamonix finish