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LiveScience
LiveScience
Sascha Pare

Savonoski Crater: The mysterious, perfectly round hole in Alaska that scientists can't explain

Alaska Earth Katmai National Park the University of Alaska Fairbanks
Aerial view of the water-filled Savonoski Crater surrounded by green vegetation.
QUICK FACTS

Name: Savonoski Crater

Location: Katmai National Park and Reserve, Alaska

Coordinates: 58.261063215437424, -154.97429850785483

Why it's incredible: The crater is perfectly round, and nobody can tell for sure how it formed.

The Savonoski Crater is a round hole in southwestern Alaska that scientists have long struggled to explain due to a lack of geological evidence. However, there is a scientific explanation for this lack of evidence, so we can confidently say that the hole is neither supernatural nor an alien creation.

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