Becs de Bosson, Mountain summit in Valais, Switzerland

Becs de Bosson is a double summit of rocky towers in the Pennine Alps, between St-Martin and Grimentz in Valais. The eastern Grand bec reaches 3,149 m and the western Petit bec 3,148.8 m. The Cabane des Becs de Bosson stands at 2,985 m directly below the summit, above the Col des Becs de Bosson at 2,942 m.

The Becs de Bosson form a double summit: the Grand bec, the main peak, reaches 3,149 m, while the Petit bec to the west is 3,148.8 m high. The mountain separates the Val d'Anniviers from the Val de Réchy and stands on the northern edge of the Lona plateau with the Lac de Lona. The highest point of the Grimentz ski area lies north of the summit at 2,874 m.

The Cabane des Becs de Bosson stands at 2,985 m directly beneath the summit, reached by trails from the valleys east and west. The easiest approach starts at the Moiry dam at 2,249 m, high enough to be reached by car. From the hut, climbers continue to the Col des Becs de Bosson at 2,942 m.

Climbing this peak requires experience with steep terrain and confidence on rocky ground, especially on the approach to the summit. Sturdy boots and proper gear will help you navigate the changing ground conditions encountered along the routes.

The Grand bec, the eastern and higher of the two summits at 3,149 m, needs climbing at grade III+ to IV, while the western Petit bec at 3,148.8 m is reached by an easy grade I route for mountaineers. The ski area of Grimentz tops out at 2,874 m just north of the summit.