The Flat Plain Was Normal... Then the Ground Just Disappeared

Badlands documentary revealing South Dakota's ancient seabed, fossil-rich rock layers, and a landscape still eroding away before our eyes. Millions of years of ancient ocean and Ice Age mammals are buried in these colorful cliffs — and the land is disappearing fast enough to watch it happen. 🏜️ Earth Secrets USA | Geology & Earth Science Documentaries 🔔 Subscribe for more hidden American landscapes #Badlands #FossilDocumentary #EarthSecretsUSA