Aiguille de la Grande Sassière

Aiguille de la Grande Sassière is a peak on the border between Savoie and Aosta Valley that rises to 3751 meters and presents different appearances from various viewpoints. Its notable north wall remains snow-covered much of the year, while the southern face drops steeply with exposed rock formations.

The first documented ascent took place in 1860 by renowned mountaineers who contributed to scientific exploration of this Alpine region. These early expeditions opened the peak to further climbers and increased knowledge of the local mountain landscape.

Local residents in the valleys on both sides of the border have long viewed this peak as a boundary marker and natural landmark in their mountain landscape. The shared climbing heritage has created traditions that connect communities across the frontier.

The ascent requires technical climbing skills and experience in alpine terrain, making a local guide advisable for most visitors. The best season runs from June through September when conditions are safest and routes are most accessible.

The summit sits directly on the border and belongs to both countries simultaneously, making it a rare geographic phenomenon. This dual belonging has historically created interesting legal and mapping questions.

Location: Sainte-Foy-Tarentaise

Location: Tignes

Location: Valgrisenche

Elevation above the sea: 3,751 m

Part of: France–Italy border, drainage divide between the Adriatic and Mediterranean seas

GPS coordinates: 45.50500,6.99984

Latest update: December 12, 2025 07:53