Our Pick
Posted on @rawstates
The Badlands
1939
Jackson County, South Dakota
Martin Kraft · CC BY-SA 3.0 · Wikimedia Commons
Layered clay and ash eroding about an inch a year, so the whole formation will be gone in half a million years. It holds one of the richest fossil beds of the Oligocene anywhere, and half the park is on Oglala Lakota land, co-managed with the tribe.
That was 1 of the hidden places.
Location: historic site
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