The Scex Rouge (also spelled Sex Rouge; lit. "red rock"; 2,972 metres (9,751 ft)) is a mountain of the Alps, overlooking Les Diablerets in the canton of Vaud . Along with the Oldenhorn to the east, it is one of the main peaks of the Diablerets, a huge ice-covered mountain near the western end of the Bernese Alps , straddling the border between the cantons of Vaud, Valais , and Bern, and exceeding 3,000 metres (9,800 ft) above sea level. On its west side, the Scex Rouge is part of a nearly 2,000-metre-high (6,600 ft) amphitheatre of cliffs surrounding the Creux de Champ valley, south of Les Diablerets. On its southeast side, the Scex Rouge overlooks the Tsanfleuron Glacier , the largest in the massif. Administratively, the mountain is part of the municipality of Ormont-Dessus , which also includes Les Diablerets.