Lac de Castillon

The Lac de Castillon (English: Lake of Castillon) is a reservoir in the Alpes-de-Haute-Provence department, Southeastern France. At an elevation of 880 m (2,890 ft), the lake's surface area is 5 km2 (1.9 sq mi). The Castillon dam holds 150000000 m3 of water.

Upon its creation in 1948, the lake submerged the former village of Castillon (after which it was named), the commune of which was then merged with Castellane.

Military testing facility
The Lac de Castillon houses a military testing facility to the southwest of Saint-Julien-du-Verdon, operated by the Direction générale de l'armement (DGA) of the Ministry of Armed Forces.