Vredefort impact structure
Impact crater
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The Vredefort impact structure is the largest verified impact structure on Earth. The crater, which has since been eroded away, has been estimated at 170–300 kilometres across when it was formed. Wikipedia
Age: 2023 Ma Pha. Proterozoic Archean Had. ↓ ± 4 Ma; Orosirian, Paleoproterozoic
Coordinates: 27°0′0″S 27°30′0″E / 27.00000°S 27.50000°E
Diameter: 170–300 km (110–190 mi) (estimated former crater diameter)
Province: Free State