The Burgäschisee is a lake below the village of Aeschi in the Swiss Mittelland, in the cantons of Bern and Solothurn, Switzerland.
Fast facts In the canton of Solothurn, it is the largest lake; About one third of the lake area belongs to the canton of Bern. The mean water level is about 465 m above sea level. M .; the lake is up to 31 m deep. (Source: Wikipedia)