Grande Sure
The Grande Sure (French pronunciation: [ɡʁɑ̃d syʁ]; Occitan: Gran Segur) is a mountain in the French department of Isère, rising to an altitude of 1,920 meters in the Chartreuse mountain chain, in the Alps, overlooking the Pays Voironnais. Located on the western border of the mountain chain, it is composed of Fontanil limestone.