Pic de Chanchou, Mountain summit in Hautes-Pyrénées, France

Pic de Chanchou is a 2,949-metre granite summit in the Ardiden massif, Hautes-Pyrénées. Its upper face is steep grey rock with pale scree gullies running down toward a broad ridge, while the lower right slope is a field of broken stones and boulders with patches of moss and lichen.

The sources record no historical events, surveys or dates for Pic de Chanchou; its documented record is topographic. It is the westernmost summit of the Bastampe ridge, which runs over three kilometres east to the soum de Caubarole (2,386 m) and links it to the pic de Barbe de Bouc, while the Aubiste ridge connects it to the pic d'Ardiden, 1.5 km north.

The peak's name, Chanchou, is not explained in the available sources, which leave the toponymy section empty. The mountain stands above Luz-Saint-Sauveur, and its normal route begins at La Fruitière in the Lutour valley, a pastoral valley name still used by walkers heading for the cirque de Culaus.

The approach starts from the Fruitière starting point in Lutour valley and follows the cirque de Culaus route. Climbers should prepare for steep terrain and carry proper mountain gear, as weather can change quickly at altitude.

The summit is the westernmost point of the three-kilometre Bastampe ridge, which runs east to the soum de Caubarole (2,386 m) and links the peak to the pic de Barbe de Bouc. A separate ridge, the crête d'Aubiste, connects it to the pic d'Ardiden, 1.5 km to the north.