Oulujärvi
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Oulujärvi | |
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Primary outflows | Oulu River |
Basin countries | Finland |
Surface area | 930 km² |
Average depth | 7 m |
Oulujärvi (pronunciation. ['ou.lu,jær.vi], Swedish: Ule träsk) is the fourth largest lake in Finland, at 930 km². It is located in the north-central region of the country and is drained by the Oulu River, which flows northwestward from the lake to the Gulf of Bothnia. Its nickname is the "Kainuu sea", and it is surrounded by three municipalities: Vaala, Paltamo and Kajaani. About 40 percent of the lake is in the Vaala municipality.