Lac d'Anglas, Mountain lake in Eaux-Bonnes, France.

Lac d'Anglas is a small mountain lake at 2,068 metres in the commune of Eaux-Bonnes, at the head of a small cirque bounded by the Pène-Médaa (2,521 m) and the Arre Sourins (2,614 m), above the cirque de Gourette. The remains of an iron mine lie on the eastern side of the cirque.

In 1881 the Eaux-Bonnes council authorised prospecting at Gourette, and the Société des Mines d'Arre worked gold- and silver-bearing ore. After the Arre deposit was abandoned, mining shifted to Lac d'Anglas; about a hundred miners worked in 1890, and ore was crushed at Gourette before going by cart to Laruns and on to Bayonne, England or Spain. Operations ended in 1916.

The lake lies on the GR10 long-distance footpath, about two hours' walk from the Gourette ski resort, and the route continues to the Hourquette d'Arre. Above the eastern side of the cirque, paths pass the remains of the iron mine, including galleries and the line of the railway that carried out the ore.

From the Gourette ski resort, the GR10 leads to Lac d'Anglas in about 2 hours of walking over 7.5 km with 700 m of ascent; the trail then continues toward the Hourquette d'Arre.

The mining remains lie on the east side of the cirque, not by the lake itself: galleries, some blocked by rockfalls, sit beside the track of the railway that carried out the ore. A gallery, a water pipe from Lac d'Uzious and the turbine it fed stand on the far side of the mountain, below Lac d'Uzious.