Aiguille de la Grande Sassière

Aiguille de la Grande Sassière is a mountain in the Graian Alps, on the boundary between the Aosta Valley (northern Italy) and the French department of Savoie.

Aiguille de la Grande Sassière
Aiguille de la Grande Sassière
Highest point
Elevation	3,751 m (12,306 ft)
Prominence	792[1]
Isolation	11.21 km (6.97 mi)
Listing	Alpine mountains above 3000 m
Coordinates	45°30′18″N 6°59′59″E
Geography
Aiguille de la Grande Sassière Location in the Alps
Location	Aosta Valley, Italy/Savoie, France
Parent range	Graian Alps
Climbing
First ascent	1808 or 1810 by inhabitants of Tignes and soldiers[2][3] First officially reported ascent by William Mathews and Michel Croz on 5 August 1860

On the Italian side, it marks the end of the Valgrisenche; on the French side it commands the Val d'Isère.