From Le Bourg-d'Oisans
Departmental road
Col de Sarenne — 1,999 m
Col de Sarenne, 1,999 m, in Isère. Main climb: 20.8 km at 6.7% average, 1,388 m of climbing from Le Bourg-d'Oisans. The Tour de France has been over it 1 times since 2026.
At a glance
- Distance
- 20.8 km
- Elevation gain
- 1,388 m
- Average gradient
- 6.7 %
- Difficulty index
- 8.8 Hard
Figures for the main climb (From Le Bourg-d'Oisans). The other climbs are further down.
Location
- Department
- Isère
- Altitude
- 1,999 m
- Coordinates
- 45.08753, 6.14906
Opening Fermé l'hiver. Ouverture en général entre fin mai et juin ; la route traverse le domaine skiable et n'est pas déneigée en saison.
Map of the climbs
- From Le Bourg-d'Oisans
- From Le Freney-d'Oisans
Cycling ascents
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Le Bourg-d'Oisans | 20.8 km | 1,388 m | 116 m | 6.7 % | 13.5 % | 8.8 Hard |
| From Le Freney-d'Oisans | 15.6 km | 1,076 m | — | 6.9 % | 14.2 % | 8.3 Hard |
Scroll the table sideways to see every column.
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
From Le Freney-d'Oisans
Minor road
2 ascents proposed here — other ways up this col remain possible.
Distances and elevation gains derived from the OpenStreetMap road network and a digital terrain model, measured on the very profile shown here.
Figures computed on 7 September 2026.
The Tour de France here
- Crossings
- 1
- Editions
- 1
- On the route
- from 2026 to 2026
- Usual category
- Hors categorie
| Year | Stage | Cat. | First over the top |
|---|---|---|---|
| 2026 | Stage 20 Le Bourg-d'Oisans → L'Alpe d'Huez | Hors categorie | Sepp Kuss |
Chains with
- Alpe d'Huez 1,860 m
Cols one of the climbs above actually rides over — not merely neighbours as the crow flies.
Cols nearby
- Col des Portes 1,835 m · 12 km
- Col de la Croix-de-Fer 2,067 m · 16 km
- Col du Glandon 1,924 m · 17 km
- Col du Mollard 1,638 m · 20 km
- Col du Galibier 2,642 m · 20 km
- Col du Lautaret 2,058 m · 21 km
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
Frequently asked questions
How long is the climb to Col de Sarenne?
The hardest climb of Col de Sarenne, from Le Bourg-d'Oisans, is 20.8 km long for 1,388 m of ascent, i.e. 6.7% average.
What is the steepest part of Col de Sarenne?
The steepest 500 m sits at 13.5%, and the hardest kilometre is the 3th, at 11.2%.
Is Col de Sarenne open all year round?
Fermé l'hiver. Ouverture en général entre fin mai et juin ; la route traverse le domaine skiable et n'est pas déneigée en saison.
How many times has the Tour de France been over Col de Sarenne?
The Tour de France has crossed Col de Sarenne 1 times, from 2026 to 2026.
Col de Sarenne: add this col to your collection
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