| Stausee Mapragg | |||||
| Location: | Pfäfers, St. Gallen | ||||
| Coords: | 46.9444°N 9.4806°W | ||||
| Type: | reservoir | ||||
| Catchment: | 114km2 | ||||
| Basin Countries: | Switzerland | ||||
| Area: | 26ha | ||||
| Volume: | 5.3e6m3 | ||||
| Pushpin Map: | Canton of St. Gallen#Switzerland#Alps | ||||
| Pushpin Label Position: | bottom | ||||
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Stausee Mapragg (Mapragg reservoir) is located at Pfäfers in the Canton of St. Gallen, Switzerland. Its surface area is 26ha. The reservoir and Gigerwaldsee are operated by Kraftwerke Sarganserwald (NOK group) for pumped-storage hydroelectricity.