The Klöntalersee is a lake in the Canton of Glarus, Switzerland. The lake has a size of about 3.3 km² and has been created by a prehistoric rock slide after the last ice age. From 1908 on it is used as a reservoir for electricity production. The picture below is from the Schwammhöhe looking down to the lake.

Klöntalsee from Schwammhöhe

Klöntalsee from Schwammhöhe

Happy Klöntaling 🙂