Dent de Crolles

The Dent de Crolles (French pronunciation: [dɑ̃ də kʁol]) is a karstic mountain (2,062 m) of the Chartreuse Mountains range, 17 kilometres (11 miles) north east of Grenoble, Isère, France.

The mountain has a characteristic "tooth-like" profile; the French word dent means "tooth".

The Dent de Crolles is easily recognizable from the Isère Valley (Grésivaudan) near Grenoble.

It is easily recognizable from the Isère valley (Grésivaudan) in the Grenoble area.

Its first detailed exploration was during World War II by a small team of French cavers which included Pierre Chevalier, Fernand Petzl, and Charles Petit-Didier.

Schematic plan of the cave system of the Dent de Crolles. The colours correspond to different levels, the Grotte du Guiers Mort being the point 0; the blue represents the river : level 0 à +100 m ; the yellow (le Métro) the level +100 à +140 m ; the red (le boulevard des Tritons) the level +140 à +200 m ; the green (Glaz-Annette) the level +350 m. The elevation between the highest entrance, the Gouffre Bob Vouay (2015 m), and the Grotte du Guiers Mort is 681 meters.