Jääsjärvi (Finnish: [ˈjæːsˌjærʋi]; lit.'ice lake') is a medium-sized lake of Finland. It is located in the Hartola and Joutsa municipalities, in the Central Finland and Päijänne Tavastia regions. The water quality in the lake is excellent.[1] The river Tainionvirta has its source in Jääsjärvi and flows through several smaller lakes to Päijänne. The water in Jääsjärvi is bright. The lake is part of the Sysmä catchment area and Kymijoki main catchment area.

Jääsjärvi
From the edge of Jääsjärvi starts the Tainionvirta River
Jääsjärvi is located in Finland
Jääsjärvi
Jääsjärvi
LocationHartola and Joutsa
Coordinates61°36′N 26°07′E / 61.600°N 26.117°E / 61.600; 26.117
TypeLake
Primary outflowsTainionvirta
Catchment areaKymijoki
Basin countriesFinland
Max. length10 km (6.2 mi)
Max. width15 km (9.3 mi)
Surface area81.11 km2 (31.32 sq mi)
Average depth4.58 m (15.0 ft)
Max. depth28.2 m (93 ft)
Water volume0.372 km3 (302,000 acre⋅ft)
Shore length1303.73 km (188.73 mi)
Surface elevation92.3 m (303 ft)
FrozenDecember–April
IslandsVehkasalo, Hirtesalo, Kotisalo, Ohrasaari, Urrionsaari, Nautsalo
References[1]
1 Shore length is not a well-defined measure.

There are dozens of islands in the lake. The biggest are Vehkasalo, Hirtesalo, Kotisalo, Ohrasaari, Urrionsaari, and Nautsalo. Vehkasalo, Hirtesalo, and Ohrasaari have roads connecting them to the mainland.

In winter time, the lake typically freezes.

References

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  1. ^ a b Jääsjärvi. Järviwiki Web Service. Retrieved 2014-02-28. (in English)

See also

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