L'Olan is a major summit in the Écrins massif. Il culminates at 3564 m and is composed of three summits of which the highest is the Northern summit. The Olan was climbed for the first time right to the central summit on the 8th July 1875, then the Northern summit on the 29th June 1877 by the famous W.B.A Coolidge and his guide Almer. A normal route setting out from the Olan refuge can, with a guide or the right mountaineering knowledge, be the goal of an ascent in the Valgaudemar.