Lake Lappajärvi

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Lake Lappajärvi
Lappajärvi is the largest lake near the lower right corner.
Location	Lappajärvi, Finland
Coordinates	63°12′N 23°42′ECoordinates: 63°12′N 23°42′E
Lake type	impact crater
Primary outflows	Ähtävänjoki
Basin countries	Finland
Surface area	145.49 km²[1]
Max. depth	36 m
Surface elevation	69.5 m[1]
Islands	56 (Kärnä)

Lappajärvi is a lake in Finland, in the municipalities of Lappajärvi, Alajärvi and Vimpeli. It is formed in a 23 km-wide meteorite crater. The age of the crater is estimated to be 73.3 ± 5.3 million years (Upper Cretaceous).

[edit] References

1. ^ ^{a b} Finnish Environment Institute: Finnish lakes larger than 40 square kilometers

[edit] External links

• Earth Impact Database
• Lappajärvi impact structure