The Grand Combin is a mountain massif in the western Pennine Alps in the canton of Valais. At a height of 4,309 metres (14,137 ft) the summit of Combin de Grafeneire is one of the highest peaks in the Alps[3] and the second most prominent of the Pennine Alps. The Grand Combin is also a large glaciated massif consisting of several summits, among which three are above 4000 metres (Combin de Grafeneire 4,309 m (14,137 ft), Combin de Valsorey 4,184 m (13,727 ft), Combin de la Tsessette 4,132 m (13,556 ft)). The highest part of the massif is wholly in Switzerland, although the border with Italy lies a few kilometres south.