Our Pick
Posted on @rawstates
Ashfall, a waterhole buried in volcanic dust
1971
Antelope County, Nebraska
Carl Malamud · CC BY 2.0 · Wikimedia Commons
A supervolcano in what is now Idaho blanketed the plains in abrasive ash twelve million years ago, and animals crowding a waterhole died of lung failure over days and weeks. Rhinos, three-toed horses and camels lie where they fell, complete and undisturbed, with unborn calves still inside them. A palaeontologist found the site after rain exposed a skull in a gully.
That was 1 of the hidden places.
Location: documented spot
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