La Serpentine, Mountain summit in Valais, Switzerland.

La Serpentine is a mountain summit in the Valais Alps situated between the Bagnes and Arolla valleys. The peak rises prominently with steep rocky slopes that define the surrounding alpine landscape.

The sources record no historical events, first ascent or pastoral tradition attached to La Serpentine; its documented record is cartographic, as a 3,713 m summit of the Swiss Pennine Alps south of Arolla, west of the Pigne d'Arolla, on the range between the Bagnes and Arolla valleys.

The summit rises above the valleys of Bagnes and Arolla, where alpine pastures and seasonal grazing routes have long shaped land use. The surrounding glaciers, including the Serpentine glacier to the west and the Brenay glacier to the south and east, mark the upper limit of the pastoral terrain.

Climbing is best undertaken during the summer months when mountain conditions are most favorable. Those starting from the valley should be well prepared with appropriate gear and experience for alpine terrain.

La Serpentine reaches 3,713 m, not 3,542 m, and stands on the ridge between the Bagnes and Arolla valleys, west of the Pigne d'Arolla. The French sources place it south of the Mont Blanc de Cheilon and note that glaciers surround it: the Glacier de la Serpentine to the west, the Glacier du Brenay to the south and east.