The lake is one of the larger lakes in Switzerland with an area of 24.1 km², about 2/3 of which belongs to St. Gallen. Its volume is 2'500 million m³. The two main rivers leading to this lake are the rivers Seez, Murgbach, and Linth. The Linth is also the river continuing on from Lake Walen to Lake Zurich.
Towns and villages on the lake include: Walenstadt, Weesen, Quinten, Quarten, Murg. The Churfirsten range raises on the North side from lake (419 m a.s.l.) to 2300 m.
Lake Zurich (Alemannic: Zürisee; German: Zürichsee) is a lake in Switzerland, extending southeast of the town of Zürich.
It is formed by the river Linth, which, rising in the glaciers of the Tödi Range in Glarus, was diverted by the Escher canal (completed in 1811) into the LakeWalen, whence, by means of the Linth canal (completed in 1816), its waters are carried to the east end of the lake of Zürich.
The eastern section of the lake is known as the Obersee, German for "upper lake".