Lake Sysmä (Ilomantsi)
| Lake Sysmä | |
|---|---|
| Location | Ilomantsi |
| Coordinates | 62°42′03″N 31°16′46″E / 62.7007°N 31.2795°E |
| Lake type | Natural |
| Catchment area | Vuoksi |
| Basin countries | Finland |
| Surface area | 11,827 km2 (4,566 sq mi) |
| Average depth | 3.09 m (10.1 ft) |
| Max. depth | 8.8 m (29 ft) |
| Water volume | 00,365 km3 (88 cu mi) |
| Shore length1 | 43 km (27 mi) |
| Surface elevation | 1,512 m (4,961 ft) |
| Frozen | December–April |
| Islands | Lammassaari, Korpisaari |
| References | |
| 1 Shore length is not a well-defined measure. | |
Lake Sysmä (Finnish: Sysmä) is a medium-sized lake in the Vuoksi main catchment area, in the Northern Karelia region of eastern Finland. It is situated in the municipality of Ilomantsi.
The largest islands are Lammassaari, Korpisaari, Veitsisaari and Kokkosaari.
Sysmä is also the name of a municipality in the Päijänne Tavastia region, and Sysmä is also a lake in Joroinen.