Fribourg Switzerland 1700
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 0.35km2. The dam was built in 1872, and its height was increased by 2.5m in 1910. The watershed (or catchment) is. The Maigrauge Dam has a gated spillway.