| Vlasina Lake | |
|---|---|
 | |
  Vlasina Lake | |
| Location | Southeast Serbia |
| Coordinates | 42°42′N 22°20′E / 42.700°N 22.333°E |
| Type | reservoir |
| Primary outflows | Vlasina River |
| Basin countries | Serbia |
| Max. length | 10.5 km (6.5 mi) |
| Max. width | 3.5 km (2.2 mi) |
| Surface area | 16 km2 (6.2 sq mi) |
| Average depth | 10.3 m (34 ft) |
| Max. depth | 34 m (112 ft) |
| Water volume | 0.165 km3 (134,000 acre⋅ft) |
| Surface elevation | 1,211 m (3,973 ft) |
| Frozen | occasionally |
| Islands | 2 permanent up to 30 floating islands |
Vlasina Lake (Serbian: Власинско језеро, romanized: Vlasinsko jezero) is a semi-artificial lake in Southeast Serbia. Lying at an altitude of 1,211 metres (3,973 ft), with an area of 16 square kilometres (6.2 sq mi), it is the highest and largest artificial lake in Serbia. It was created in 1947–51 when the peat bog Vlasinsko blato (Vlasina mud) was closed off by a dam and submerged by the waters of incoming rivers, chiefly the Vlasina.