| Lac des Autannes | |||||
| Location: | Grimentz, Valais | ||||
| Coords: | 46.1328°N 7.5428°W | ||||
| Type: | reservoir | ||||
| Basin Countries: | Switzerland | ||||
| Area: | 4.5ha | ||||
| Elevation: | 2686m (8,812feet) | ||||
| Pushpin Map: | Canton of Valais#Switzerland#Alps | ||||
| Pushpin Label Position: | bottom | ||||
| Pushpin Relief: | y | ||||
| Embedded: |
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Lac des Autannes is a lake above Grimentz in the canton of Valais, Switzerland. The reservoir has a surface area of . It is located at an elevation of .