| Vordersee | |||||
| Location: | Valais | ||||
| Coords: | 46.4414°N 8.1056°W | ||||
| Basin Countries: | Switzerland | ||||
| Area: | 6.2ha[1] | ||||
| Elevation: | 2360m (7,740feet)[2] | ||||
| Pushpin Map: | Canton of Valais#Italy Piedmont#Switzerland#Italy#Alps | ||||
| Pushpin Label Position: | bottom | ||||
| Pushpin Relief: | y | ||||
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The Vordersee (also named Märjelen-Stausee) is a reservoir located east of the Aletsch Glacier, between the Strahlhorn and the Eggishorn, in the Swiss canton of Valais. The lake has a surface area of 0.062 km² and is located at 2,360 metres above sea level. It is located in the municipality of Fieschertal.