Sääksjärvi

Impact crater

The Sääksjärvi is a lake in the Finnish landscape Satakunta.

The 33.18 km ² lake is located about 30 km east of Pori at an altitude of 49 m. The Piilijoki flows on the northeastern shore into the lake. The Kauvatsanjoki drains the Sääksjärvi at its southeast end and flows to the nearby Kokemäenjoki.

The lake covers about one impact crater with a diameter of 5 km. The age of the impact is estimated to be 602 ± 17 million years.