Lake Lappajärvi, Impact crater lake in Southern Ostrobothnia, Finland
Lake Lappajärvi spans across three municipalities with a surface area of 145 square kilometers and reaches depths of 36 meters at its deepest points.
The lake formed approximately 77.85 million years ago during the Late Cretaceous period when an asteroid measuring 1.6 kilometers wide struck the Earth.
The geological museum at Hotel Kivitippu presents meteorite exhibitions featuring rock samples from the Moon and educational materials about impact craters.
Visitors can participate in fishing activities throughout the year with proper permits, while winter allows for tour skating on maintained ice sections.
The lake contains 56 islands, including Kärnänsaari, which features a specific type of impact melt rock formation known as Kärnäiitti.
Location: Lappajärvi
Location: Vimpeli
Location: Alajärvi
Elevation above the sea: 70 m
GPS coordinates: 63.13511,23.64236
Latest update: May 17, 2025 10:21
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