Access from Bagnères-de-Luchon
Located in Haute-Garonne, the Col du Portillon is the border between Spain (Val d'Aran) and France (Pique Valley). Since 1947, this pass has been crossed 20 times during the stages of the Tour de France.
From Saint-Lary, you reach Bagnères-de-Luchon via the Peyresourde pass, which rises to 1,569m. After Luchon, the ascent of the col du Portillon starts at 635m and is relatively fast and demanding.
The climb begins at an altitude of 635m with an average gradient of 7.2% over 9.1 km finishing at 1,293m meaning a height gain of 658 m. The climb will take about 1h20.