| Klöntalersee | |||||
| Image Bathymetry: | Karte Klöntalersee.png | ||||
| Caption Bathymetry: | map | ||||
| Location: | Canton of Glarus | ||||
| Coords: | 47.0256°N 8.9806°W | ||||
| Inflow: | Chlü | ||||
| Outflow: | Löntsch | ||||
| Basin Countries: | Switzerland | ||||
| Area: | 3.3km2 | ||||
| Max-Depth: | 49m (161feet) | ||||
| Elevation: | 848m (2,782feet) | ||||
| Cities: | Seerüti, Vorauen | ||||
| Pushpin Map: | Canton of Glarus#Switzerland#Alps | ||||
| Pushpin Label Position: | bottom | ||||
| Embedded: |
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Klöntalersee is a natural lake in the canton of Glarus, Switzerland and covers the major part of the German: Klöntal valley floor. Since 1908, it has been used as a reservoir for electricity production. The dam's construction substantially increased the lake's volume.
Klöntalersee is drained by the Löntsch, a left tributary of the Linth.