re: #212 wheat-dogghazi
USGS discovers Decorah, Iowa, sits atop meteorite crater made almost 500 million years before creation of Earth! //
USGS discovers Decorah, Iowa, sits atop meteorite crater made almost 500 million years before creation of Earth!
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Here’s a much newer one (83 million years). We drive up its wall on the way to visit Daughter 1.
en.wikipedia.org