Lake Lappajärvi
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| Lake Lappajärvi | |
|---|---|
| Location | Lappajärvi, Finland |
| Coordinates | |
| Lake type | impact crater |
| Basin countries | Finland |
| Surface area | 145.49 km² |
| Islands | 56 |
Lappajärvi is a lake in the municipality of Lappajärvi, Finland. It is formed in a 23 km-wide meteor crater. The age of the crater is estimated to be 73.3 ± 5.3 million years (Upper Cretaceous).
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