Pic de Bastan, Granite summit in Hautes-Pyrénées, France

Pic de Bastan is a granite summit rising to approximately 2715 meters in the Hautes-Pyrénées. Several alpine lakes dot the slopes and surrounding valleys of this mountain, which sits within the Néouvielle range shaped by glaciation.

Bastan is a generic local place name, applied to the chain of Bastan lakes south of the peak and to the separate Pic de Bastan d'Aulon. The summit stands in an enclave of the commune of Vielle-Aure, between the Aure valley to the south-east and the Campan valley to the north, on the western edge of the Arbizon massif. Like the rest of the Néouvielle massif, it is made almost entirely of granite.

The name Bastan is a generic local term used for the chain of lakes south of the summit — Bastan supérieur, du milieu and inférieur — and also for the separate Pic de Bastan d'Aulon. The peak stands in an enclave of the commune of Vielle-Aure, and the surrounding lakes give the area its name.

The ascent begins at Col de Portet at approximately 2215 meters, with several trails offering different levels of difficulty to reach the summit. The best visiting season is during warmer months when snow and ice do not obstruct the paths.

The summit lies in an enclave of the commune of Vielle-Aure, about 20 km from the Spanish border. Lakes surround the peak in every direction: Bastanet just below, the three Bastan lakes to the south, and further down Lac de l'Oule. The col de Bastanet (2,509 m) and the peaks of Prada and Portarras form the Arbizon massif's foothills to the east.