Zervreilasee

Zervreilasee is a reservoir located south-west of Vals in the canton of Graubünden, Switzerland. The lake has a surface area of 1.61 km² and an elevation of 1,862 m. The maximum depth is 140 m.

View of the lake with the Zervreilahorn

Zervreilasee
Location	Vals, Graubünden
Coordinates	46°33′57″N 9°5′52″E
Type	reservoir
Primary inflows	Valser Rhein, Hornbach, Canalbach
Primary outflows	Valser Rhein
Catchment area	63.9 km2 (24.7 sq mi)
Basin countries	Switzerland
Surface area	1.61 km2 (0.62 sq mi)
Max. depth	140 m (460 ft)
Water volume	101 million cubic metres (82,000 acre⋅ft)
Surface elevation	1,862 m (6,109 ft)

The dam is 151 m high and was completed in 1957. The village of Zervreila was flooded after the construction of the dam. A 150-metre-long bridge (Canalbrücke) crosses the southern bay of the lake.

The Zervreilasee, located near the upper end of the Valser Tal, is surrounded by peaks over 3,000 metres. The highest visible from the lake is the Güferhorn (3,379 m), located on the south side. Other peaks are the Fanellhorn (3,124 m), the Frunthorn (3,030 m), Piz Scharboda (3,122 m), the Plattenberg (3,041 m) and the Furggeltihorn (3,043 m). The Zervreilahorn is a sharp peak overlooking the lake from its south-west side.