Grande Casse Glacier

The Grande Casse Glacier is an ice formation within the Vanoise Massif that stretches to roughly 3100 meters altitude and features numerous crevasses along with steep ice walls. The terrain consists of varying sections of solid ice and treacherous breaks that mark the path for climbers.

The glacier formed over thousands of years through the accumulation of snow and later became a significant training ground as alpine climbing developed in the region. The exploration of this area contributed greatly to the development of modern climbing techniques in the Alps.

Mountain guides from the region have maintained a tradition of leading climbers across the ice and sharing their knowledge of glacier climbing techniques. This connection between local experience and visitors shapes the character of the surrounding valley today.

Visitors need specialized equipment like crampons, ice axes, ropes, and harnesses to safely cross the ice. The best time to explore is between June and September, when conditions are more stable and accessible.

The glacier serves as a direct passage between Pralognan and the upper Champagny valley through a technical route beneath the North Face of Grande Casse. This connection is less travelled than main routes and offers climbers an alternative link between two valleys.