Lac de Pérolles

Lac de Pérolles, a reservoir formed by Maigrauge Dam, is a reservoir on the Saane/Sarine river at Fribourg, in western Switzerland. Its surface area is 0.35 km2. The dam was built in 1872, and its height was increased by 2.5 m in 1910. The watershed (or catchment) is 1250 km2. The Maigrauge Dam has a gated spillway.