L'Isolée

L'Isolée is a granite peak in the Aiguilles du Diable range of the Graian Alps in southeastern France. This summit reaches 4,114 meters and stands within a dramatic rocky landscape where steep ridges and exposed terrain characterize this section of the mountain chain.

The summit was first reached in 1956 when a climbing team led by Roberto Rossi established a technical route through the rock formation. Since then, the mountain has remained part of the documented climbing network in the Mont Blanc region.

Local climbing communities maintain detailed route documentation of L'Isolée, contributing to the mountaineering heritage of the Haute-Savoie region.

Mountaineers typically visit this peak during summer months when weather conditions become favorable for climbing. The nearest shelter available is the Bivacco Alberico e Borgna, which serves as a key support point for climbing activities.

Despite its impressive elevation, this peak remains less known than other summits in the region, making it a preferred destination for experienced mountaineers seeking technical routes without large crowds. The relatively low prominence of about 14 meters means it sits very close to neighboring peaks, making it often included in multi-day climbing trips.