| Zervreilasee | |
|---|---|
 | |
  Zervreilasee  Zervreilasee  Zervreilasee  Zervreilasee | |
 | |
| Location | Vals, Graubünden |
| Coordinates | 46°33′57″N 9°5′52″E / 46.56583°N 9.09778°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) |
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Zervreilasee is a reservoir located south-west of Vals in the canton of Graubünden, Switzerland.