| Ägerisee | |||||
| Other Name: | Lake Ägeri | ||||
| Coords: | 47.12°N 8.6161°W | ||||
| Lake Type: | Glacial lake | ||||
| Inflow: | Hüribach | ||||
| Outflow: | Lorze | ||||
| Catchment: | 4.068km2 | ||||
| Basin Countries: | Switzerland | ||||
| Length: | 5.4km (03.4miles) | ||||
| Width: | 1.4km (00.9miles) | ||||
| Area: | 7.3km2 | ||||
| Depth: | 49m (161feet) | ||||
| Max-Depth: | 83m (272feet) | ||||
| Volume: | 0.36km3 | ||||
| Residence Time: | 6.8 years | ||||
| Elevation: | 724m (2,375feet) | ||||
| Cities: | Oberägeri, Unterägeri | ||||
| Frozen: | January/February in some winters | ||||
| Pushpin Map: | Canton of Zug#Switzerland#Alps | ||||
| Pushpin Label Position: | bottom | ||||
| Embedded: |
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Ägerisee or Lake Aegeri is a glacial lake in the Canton of Zug, Switzerland. The two municipalities along its shore are Oberägeri and Unterägeri. The main tributary is the Hüribach; the Lorze river drains the Ägerisee. Since 1992 the lake has been used as a water reservoir.
The Battle of Morgarten took place in 1315 on the shores of the Ägerisee.