Iso-Roine

Iso-Roine (also Iso Roinevesi) is medium-sized lake in the Kokemäenjoki main catchment area in the Tavastia Proper region in Finland. The lake is located in the area of the city of Hämeenlinna. It is part of a chain of lakes that begins from the lakes Lummene and Vesijako at the drainage divide between the Kokemäenjoki and Kymijoki basins and flows westwards from there through the lakes Kuohijärvi and Kukkia into the Lake Iso-Roine, which in turn drains into lake Mallasvesi through the lakes Hauhonselkä and Ilmoilanselkä.[1]

Iso-Roine
Iso-Roine
Coordinates	61°13′00″N 24°34′00″E
Basin countries	Finland
Surface area	30.871 km2 (11.919 sq mi)
Average depth	7.17 m (23.5 ft)
Max. depth	73 m (240 ft)
Water volume	0.221 km3 (179,000 acre⋅ft)
Shore length1	146.7 km (91.2 mi)
Surface elevation	84.2 m (276 ft)
Frozen	December–April
Islands	Lammassaari, Huhtisaari, Papinsaari
Settlements	Hauho
References	[1]
1 Shore length is not a well-defined measure.

This lake is one of the deepest lakes in Finland, depth is more than 70 meters.