The ice circle of Vana-Vigala is a natural phenomenon appearing on the Vigala River in Estonia while the river freezes.Olev Kenk: "Fotod ja video: Vigala jääratas hakkas taas pöörlema" novaator.err.ee, January 9th, 2019
It can be seen in Vana-Vigala village near the old manor park.Heleri Kuris, Ats Nukki: Interaktiivne skeem: kuidas tekib Vana-Vigala jõe salapärane jääketas? Delfi, 11. jaanuar 2019
The diameter of the disk is approximately 23Jaan Viska: Jääratas pöörlemas Vana-Vigalas – mitte ainult kylauudis.ee, 11. jaanuar 2017–24 m. The first documented mention of this phenomenon is in 2004.Eve Heinla: Vigala jõel pöörleb müstiline jääratas Õhtuleht, January 2004
Gallery
{ "type": "FeatureCollection", "features": [
"type": "Feature", "properties": {}, "geometry": { "type": "Point", "coordinates": [ 24.262521, 58.778248 ]
] }
References