The Wildhorn is a mountain of the Alps, straddling the border between the Swiss cantons of Bern and Valais . At 3,250 metres (10,663 ft) above sea level, it is the highest summit of the Bernese Alps west of the Gemmi Pass . It forms a large glaciated massif, about 10 km wide, extending between the Sanetsch Pass and the Rawil Pass . Along with the Muverans, the Diablerets and the Wildstrubel , the Wildhorn is one of the four distinct mountain massifs of the Bernese Alps that lie west of the Gemmi Pass. The massif of the Wildhorn is at the centre between the valleys of the Saane, Simme (both Canton of Bern ) and the Rhone (Valais). It comprises several distinct summits, including (from west to east) the Arpelistock , Le Sérac, the Geltenhorn, the Sex Noir, the Sex Rouge, the Schnidehorn and the Six des Eaux Froides .