Port d'Lers from Vicdessos
Port d'Lers from Vicdessos is a tough climb and has been summited by the Tour de France 5 times. Most recently in 2015 when Michal Kwiatkowski was first to the top before being caught on the finish climb of Plateau de Beille. Rising hard right from the bottom with gradients of 12% and 13%. Much of the climb is in forest, with the scenery really opening up in the final 2-3km. Great views at the top and from here you have lots of options to carry onto the Col d'agnes or Col de Port.