Mont Tout Blanc, Mountain summit in Aosta Valley, Italy.

Mont Tout Blanc is a mountain summit in the Graian Alps standing at about 3,400 meters (11,150 feet), located between the Valsavarenche and Rhêmes valleys. The peak features snow and ice-covered slopes that persist throughout the year.

The sources record no historical events, dates or studies for Mont Tout Blanc; its documented record concerns geography and access. It lies on the ridge between the Valsavarenche and Rhêmes valleys, divided from the Pointe de l'Aouillé by the Col de l'Aouillé and from the Punta Leynir by the Col Rosset. It is now within the Gran Paradiso National Park.

The name Mont Tout Blanc comes from French and means 'totally white', referencing the year-round snow that covers this peak. Visitors walking through the lower valleys notice how this constant white cap stands out against the darker surrounding ridges.

The ascent demands alpine climbing gear and solid mountain experience due to steep, snow-laden slopes. The Rifugio Città di Chivasso at roughly 2,600 meters (8,530 feet) serves as a key rest point offering food and lodging for climbers.

The summit is also a cycloclimbing destination, and the normal route from Colle del Nivolet passes Lake Rosset before reaching Col Leynir at 3,084 m. The final stretch climbs the south-west face over a small rock step that can be taken directly or bypassed. Its topographic prominence is 111 m, with the Col de l'Aouillé as the key col.