Col d'Aspin is a mountain pass in the French Pyrenees in the department of the Hautes-Pyrénées. It connects Sainte-Marie-de-Campan, in the upper Adour valley, with Arreau, on the River Neste. From Wikipedia
An 11 km uphill time trial precedes a punishing 182.6 km Pyrenean stage that could reshape the overall rankings
