A Finnish-Estonian scientific collaboration by Geological Survey of Finland, University of Tartu, and University of Helsinki has led to a discovery of ancient meteorite impact crater in Central Finland. The crater has a diameter of 2.6 km and it is covered by the Lake Summasjärvi (Summanen), about 9 km south-east of the nearest city, Saarijärvi, and 275 km north of Helsinki. The age of the impact event and the type of the meteorite causing the crater, are still unknown.