Mont-Blanc de Peisey, Alpine summit in Peisey-Nancroix, France.

Mont-Blanc de Peisey is a 2,866-metre summit in the Vanoise massif in Savoie. It forms the southern end of a ridge whose northern end is the Aliet at 3,109 metres, and it overlooks the Lac de la Plagne to the east, the Entre le Lac refuge to the south-east and the Plan Richard lakes to the west.

Mont-Blanc de Peisey is the southern end of a ridge whose northern end is l'Aliet at 3,109 metres; both are overlooked by the Sommet de Bellecôte at 3,417 metres to the west. The summit rises to 2,866 metres above the Lac de la Plagne to the east, the Refuge Entre le Lac to the south-east and the Lacs de Plan Richard to the west.

The summit stands on the ridge above the Lac de la Plagne and the Refuge Entre le Lac, in the Vanoise massif of Savoie. Its slopes and the surrounding pastures belong to the commune of Peisey-Nancroix, where alpine farming has shaped the land for generations.

No lift or cable car serves the summit; access is on foot from the Vanoise side, with the Entre le Lac refuge to the south-east and the Plan Richard lakes to the west as landmarks. The 2,866 m altitude and the ridge running north to the Aliet demand weather-appropriate gear and an early start.

In winter, frozen waterfalls create natural ice climbing structures that draw climbers from across Europe. These icy formations are seasonal features that appear only during the coldest months.