| Lake Zug | |
|---|---|
| Zugersee (German) | |
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  Lake Zug  Lake Zug  Lake Zug  Lake Zug  Lake Zug | |
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| Location | Central Switzerland |
| Coordinates | 47°7′N 8°29′E / 47.117°N 8.483°E |
| Primary inflows | Lorze |
| Primary outflows | Lorze |
| Catchment area | 204 km2 (79 sq mi) |
| Basin countries | Switzerland |
| Max. length | 13.8 km (8.6 mi) |
| Max. width | 4.7 km (2.9 mi) |
| Surface area | 38.3 km2 (14.8 sq mi) |
| Average depth | 83.2 m (273 ft) |
| Max. depth | 197 m (646 ft) |
| Water volume | 3.2 km3 (0.77 cu mi) |
| Residence time | 14.7 years |
| Surface elevation | 417 m (1,368 ft) |
| Sections/sub-basins | Obersee, Untersee |
| Settlements | Zug, Arth, Buonas, Cham, Immensee, Oberwil, Risch, Walchwil, Meierskappel |
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Lake Zug (German: Zugersee) is a lake in Central Switzerland, situated between Lake Lucerne and Lake Zurich. It stretches for 14 km (8.7 mi) between Arth and the Cham-Zug bay. The Lorze as the main feeder river empties its waters into the lake at its northern extremity, but 1 km (0.6 mi) further west issues from the lake to pursue its course towards the Reuss. Due to this poor feeding, Environmental protection is very important as the lake would suffer long term damage if polluted as the second of the rivers, Rigiaa, feeds only a marginal amount into the lake at its southern end. Already a great part of the fauna in the deep parts of the lake has been lost.