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Decorah impact crater

View on map:43.313814°N 91.772233°W

Description


Decorah crater

The Decorah impact crater, also called the Decorah impact structure, is an impact crater located on the east side of the city of Decorah in Iowa, United States. It was caused by a ca. 200-meter-wide meteorite impact during the Middle Ordovician Period, 470 million years ago.

References

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