From Barcelonnette
Departmental road
Col d'Allos, 2,250 m, in Alpes-de-Haute-Provence. Main climb: 20.1 km at 5.9% average, 1,180 m of climbing from Barcelonnette. The Tour de France has been over it 2 times since 1935.
Figures for the main climb (From Barcelonnette). The other climbs are further down.
Opening Fermé l'hiver. Ouverture en général entre fin mai et juin selon le déneigement ; la route est étroite et son état conditionne la réouverture.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Barcelonnette | 20.1 km | 1,180 m | 75 m | 5.9 % | 10.3 % | 7.3 Sustained |
| From Allos | 14.2 km | 814 m | — | 5.7 % | 8.5 % | 5.8 Sustained |
Scroll the table sideways to see every column.
Departmental road
Departmental 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.
| Year | Stage | Cat. | First over the top |
|---|---|---|---|
| 1936 | — | ||
| 1935 | Stage 9 Gap → Digne | — | Félicien Vervaecke |
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Col d'Allos, from Barcelonnette, is 20.1 km long for 1,180 m of ascent, i.e. 5.9% average.
The steepest 500 m sits at 10.3%, and the hardest kilometre is the 8th, at 8.9%.
Fermé l'hiver. Ouverture en général entre fin mai et juin selon le déneigement ; la route est étroite et son état conditionne la réouverture.
The Tour de France has crossed Col d'Allos 2 times, from 1935 to 1936.
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