Hiidenvesi

Lake in Uusimaa, Finland

60°22′30″N 024°11′30″E / 60.37500°N 24.19167°E / 60.37500; 24.19167Catchment areaKarjaanjokiBasin countriesFinlandSurface area29.09 km² (11.23 sq mi)Average depth6.68 m (21.9 ft)Max. depth29.38 m (96.4 ft)Water volume0.195 km³ (158,000 acre⋅ft)Shore length¹100.87 km (62.68 mi)Surface elevation32 m (105 ft)FrozenDecember–AprilIslandsPapinsaariSettlementsVihti, LohjaReferences^[1]¹ Shore length is not a well-defined measure.

Hiidenvesi (Finnish pronunciation: [ˈhiːdenˌʋesi]; lit. 'hiisi water') is the second largest lake in the Uusimaa region in Finland. The biggest part of the lake is located in the municipality of Vihti and smaller parts in the town of Lohja. The lake drains through the Väänteenjoki River into lake Lohjanjärvi. Both lakes are part of the Karjaanjoki (Swedish: Svartån) basin that drains into the Gulf of Finland.^[1]