| Coords | 47°35′N 8°14′E |
|---|---|
| Location | Aargau |
| Inflow | Aare |
| Outflow | Aare |
| Basin countries | Switzerland |
| Length | 3 km (1.9 mi) |
| Width | 500 m (1,600 ft) |
| Area | 1.16 km2 (0.45 sq mi) |
| Max-depth | 8.5 m (28 ft) |
| Elevation | 318 m (1,043 ft) |
| Islands | 1 |
| Cities | Döttingen, Klingnau |
The Klingnauer Stausee (or "Klingnau reservoir") is a reservoir near Böttstein, canton of Aargau, Switzerland, at 47°35′N 8°14′E. The reservoir with a surface of 1.16 km2 (0.45 sq mi) was formed at the construction of a power plant on the Aare river in the 1930s.[citation needed]