Lygnern
| Lygnern | |
|---|---|
| Location | Halland County, Västra Götaland County, Sweden |
| Coordinates | 57°28′36″N 12°20′22″E / 57.47667°N 12.33944°E |
| Primary outflows | Rolfsån |
| Basin countries | Sweden |
| Max. length | 20 km (12 mi) |
| Max. width | 2.5 km (1.6 mi) |
| Surface area | 33 km2 (13 sq mi) |
| Max. depth | 50 m (160 ft) |
| Surface elevation | 15 m (49 ft) |
| Settlements | Fjärås kyrkby, Sätila |
| References | |
Lygnern (Swedish pronunciation: [ˈlʏ̂ŋːnɛɳ]) is a lake in the municipalities of Kungsbacka and Mark, western Sweden. With an area of 33 km², it is the largest lake in Halland County. Its main outflow is Rolfsån, which in turn empties out into the Kungsbacka Fjord.
The lake serves as a source of drinking water for Kungsbacka. In 2006, it was nominated as the cleanest lake in Sweden, as 98% of the surveyed residents of the municipality were satisfied with the water quality.