The Sihlsee (in English sometimes called Lake Sihl) is an artificial lake in the Swiss canton of Schwyz, near the town of Einsiedeln. The lake was created by damming the river Sihl and flooding a section of the upper Sihl Valley.
The lake is the largest artificial lake of Switzerland in terms of surface with a maximum length of 8.5 kilometres and maximum width of 2.5 kilometres. The maximum depth is 17 metres, and the lake has an approximate volume of 96,000,000 m3.
