Elevation profile — 23km du Mont-Blanc 2026
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About 23km du Mont-Blanc
23km du Mont-Blanc is a premier ultra race held annually in Chamonix. The 2026 edition covers 23km.
Course map
Course map — 23km du Mont-Blanc 2026
The route will appear here as soon as parsed GPX coordinates are available.
Race logistics
Looking for the next 23km du Mont-Blanc edition?
This guide covers a past edition. Browse currently upcoming races when you want an active event to plan.
Race intelligence
Aid stations
| Aid station | km | Cutoff | Drop bag | Crew |
|---|---|---|---|---|
| Ravitaillement de Montroc | 11.4 | 2h30 | — | — |
| Ravitaillement de la Flégère | 18.4 | 4h30 | — | — |
Data sourced from the official race website. Always verify with the official race guide before race day.
Mandatory kit
Mandatory gear
- ✓Téléphone portable en état de fonctionnement
- ✓Réserve d’eau de 0,50 litre minimum
- ✓Veste imperméable avec capuche (type gore-tex) adaptée à sa taille
- ✓Couverture de survie (140cm x 200cm)
- ✓Gobelet
- ✓Sifflet
- ✓Argent liquide
Data sourced from the official race website. Always verify with the official race guide before race day.
Travel
Getting there
The race starts in Chamonix, France. Use TrailCompanion's transport planner to find trains, flights, and rideshares from your city.
Open the transport planner for Chamonix, France →Data sourced from the official race website. Always verify with the official race guide before race day.
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