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Grand Tours
Explore
Grand Tours
169.7 km from Le Bourg d'Oisans to Alpe d'Huez with 5,607 m of climbing, measured along the organiser's published course.
| Climb | Category | Summit at | Length | Gradient |
|---|---|---|---|---|
| Col de la Croix de Fer (2 067 m) | Hors catégorie | km 33.6 | 24.0 km | 5.2% |
| Col du Télégraphe (1 566 m) | Category 1 | km 87.0 | 11.9 km | 7.1% |
| Col du Galibier (2 642 m) Souvenir Henri Desgrange | Hors catégorie | km 109.8 | 17.7 km | 6.9% |
| Col de Sarenne (1 999 m) | Hors catégorie | km 155.5 | 12.8 km | 7.3% |
The course comes from ASO's own published geometry, the same data that draws the stage map on letour.fr, not from a route planner joining towns. VeloWorkout measures 169.7 km against the 170.9 km the roadbook prints, and 5,607 m of climbing against a published 5,450 m. Elevation is sampled from the Terrarium elevation model and smoothed, so digital-model noise is not counted as climbing.
Waypoint positions agree with ASO's separately published climb positions to a median of 126 m (worst 236 m).