The Barre des Écrins is the highest peak in the Provence-Alpes-Côte d'Azur region including all of Occitania and the Southern Alps. It is located in the commune of Pelvoux and is situated near the Drainage divide between the Durance and the Vénéon. This divide passes 250 metres west of the summit, along the ridge that leads to the summit of the sub-peak Dôme des Écrins (4088 metres). The south face of the mountain is rocky while the north face is ice as it is the starting point of the Glacier Blanc.