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Lake Vodlozero (Russian: Водлозеро, Finnish: Vodlajärvi) is a large freshwater lake in the southeastern part of the Republic of Karelia, Russia. It is located at 62°20′N 36°55′E / 62.333°N 36.917°E and has an area of 322 km². It is 36 km long and 16 km wide. There are more than 190 islands on the lake. Vodlozero is used for fishery. It freezes up in early November and stays icebound until early May. Vodla River flows from Vodlozero into Lake Onega.