Iisvesi is a rather large

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

. The lake consists of three separate basins: Iisvesi, Virmasvesi and Rasvanki. Located within

Tervo Tervo is a municipality of Finland. It is located in the province of Eastern Finland and is part of the Northern Savonia region. The municipality has a population of (), making it Northern Savonia's least populous municipality. It covers an area ...

Rautalampi Rautalampi is a municipality of Finland. It is located in the Northern Savonia region. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Finnish. Neigh ...

Suonenjoki Suonenjoki (; literally means "vein's river") is a town and municipality of Finland. It is located in the Northern Savonia region, southwest of the Kuopio city. The town has a population of () and covers an area of of which is water. The pop ...

and northern Kuopio on a sparsely populated area the waters are generally pretty clear.

References

Kymi basin Lakes of Kuopio Lakes of Tervo Lakes of Rautalampi {{EasternFinland-geo-stub