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Lake in Republic of Karelia, Russia
You can help expand this article with text translated from the corresponding article in Finnish. (June 2023) Click for important translation instructions.
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You can help expand this article with text translated from the corresponding article in Russian. (February 2024) Click for important translation instructions.
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The basin of this somewhat circular lake was formed by meteorite impact 700±5 million years ago during the Cryogenian period. The crater is 14 kilometers (8.7 mi) in diameter.
Prior to World War II, the lake was thought to be the second known volcanic caldera in Finland (the other was Lake Lappajärvi). Both were eventually recognized as impact craters.
YanisyarviShow map of Russia
