Rocher du Bonhomme, Mountain summit in Les Contamines-Montjoie, France

Rocher du Bonhomme is a summit in the Mont Blanc massif in Haute-Savoie, overlooking the Col du Bonhomme, to which it gave its name. The rock itself consists of Grès Singuliers overlying Lower Jurassic sandy sedimentary rocks, all resting on the crystalline rocks of the Mont Blanc massif.

The summit gave its name to the Col du Bonhomme, the pass it overlooks between the Beaufortain and the Mont Blanc massif. The rock itself is made of Grès Singuliers, sitting on a base of Lower Jurassic sandy sedimentary rocks, all resting on the crystalline rocks that form the heart of the Mont Blanc massif.

The Rocher du Bonhomme marks a significant stage of the Tour du Mont Blanc, a recognized hiking trail that crosses through three Alpine countries.

The summit overlooks the Col du Bonhomme, which takes its name from the rock. Approach from Les Contamines-Montjoie via the marked trail through the valley; the final slopes are exposed, so carry water and check the weather before setting out.

The summit itself is made of Grès Singuliers, a sandstone whose base consists of Lower Jurassic sedimentary sandstone rocks; the whole rests on crystalline rocks forming the heart of the Mont Blanc massif. The peak also gave its name to the Col du Bonhomme below it.