Courmayeur, Italy to Chamonix, France
The second-longest UTMB series race covers the most spectacular portion of the Mont Blanc circuit. From Courmayeur through Italy and Switzerland before finishing in Chamonix, the course crosses Grand Col Ferret and climbs to La Flégère with relentless alpine terrain.
| Name | Mile | Elevation | Crew Access | Drop Bag | Cutoff |
|---|---|---|---|---|---|
| Rifugio Bertone | 4.3 | 6,070 ft | No | No | — |
| Refuge Bonatti | 11.2 | 7,710 ft | No | No | — |
| Arnuva | 16.8 | 5,085 ft | Yes | Yes | — |
| Grand Col Ferret | 20.5 | 8,200 ft | No | No | — |
| La Fouly | 26.7 | 5,250 ft | Yes | Yes | — |
| Champex-Lac | 34.8 | 4,790 ft | Yes | Yes | — |
| Trient | 42 | 4,430 ft | Yes | No | — |
| Vallorcine | 47.8 | 4,265 ft | Yes | No | — |
| La Flégère | 54.7 | 5,900 ft | Yes | No | — |
| Segment | Miles | Terrain | Difficulty | Notes |
|---|---|---|---|---|
| Courmayeur to Grand Col Ferret | 0–20.5 | climb | extreme | Massive climb over the border. Grand Col Ferret is the high point. |
| Grand Col Ferret to Champex-Lac | 20.5–34.8 | descent | hard | Long descent through Swiss valleys. |
| Champex-Lac to Vallorcine | 34.8–47.8 | mixed | hard | Bovine climb then descent to Trient. |
| Vallorcine to Chamonix | 47.8–62 | mixed | hard | Final climb to La Flégère then descent to finish. |
View the full interactive elevation profile, 3D course flyover, and race strategy tools on HARDN.