Mont Mallet, Mountain summit in Chamonix-Mont-Blanc, France

Mont Mallet is a granite summit of 3,989 metres in the Mont Blanc massif in Haute-Savoie, France. It rises on a spur running north from the French-Italian frontier ridge, near the Aiguille de Rochefort. Its upper faces and ridgelines are bare grey-brown rock broken into vertical ribs and pinnacles, while the lower slopes and gullies hold patches and sheets of snow.

The peak was first climbed on September 4, 1871, when Leslie Stephen led a party that included artist Gabriel Loppé. This early ascent was part of the intense mountaineering exploration of the 19th century in this region.

Mont Mallet is separated from the Périades to the north by the Col du Mont-Mallet, and their shared ridge divides the Glacier des Périades on the west from the Glacier du Mont-Mallet on the east. Climbers approach the summit most easily from the Aiguille de Rochefort, and the southern ridge, first used in 1871, is graded PD on the French adjectival scale.

The best preparation is physical fitness and mountaineering experience, since the route requires ridge and glacier climbing. Visitors should expect changing weather conditions and bring appropriate gear.

Mont Mallet is separated from the Périades to the north by the Col du Mont-Mallet, and their shared ridge divides the Glacier des Périades on the west from the Glacier du Mont-Mallet on the east. The easiest approach comes from the Aiguille de Rochefort, not from the valley below.