This medium mountain stage departed from L'Isle-Jourdain, heading south-west through Lombez to Boulogne-sur-Gesse. The race then turned west travelling through Castelnau-Magnoac and Trie-sur-Baïse to Chelle-Debat. The route then turned south through Bordes and south-east to ascend the Category 4 Côte de Capvern, continuing without descent into La Barthe-de-Neste. The riders then headed south through an intermediate sprint at Sarrancolin, continuing to Arreau before turning west to begin the climb of the Category 1 Col d'Aspin to . The riders then had a descent to the finish line at Lac de Payolle.