The ice circle of Vana-Vigala is a natural phenomenon appearing on the Vigala River in Estonia while the river freezes.[1]

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The ice disk of Vana-Vigala in November 2023

It can be seen in Vana-Vigala village near the old manor park.[2]

The diameter of the disk is approximately 23[3]–24[4] m. The first documented mention of this phenomenon is in 2004.[4]

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References

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