Col du Soulor is a mountain pass in the Pyrenees in France, linking Argelès-Gazost with Arthez-d'Asson. It connects the Ouzom and Arens valleys. A road leaves the pass to the west to reach the higher Col d'Aubisque. From Wikipedia
The solo attack left him 3:31 ahead in the general classification, marking the start of a brutal Pyrenean mountain block.
