How This Cave Formed Upside Down | Untold Earth - Atlas Obscura

How This Cave Formed Upside Down | Untold Earth

Below the Chihuahuan Desert in southeastern New Mexico lies an extensive system of limestone caves, among them the pristine Lechuguilla Cave and famed Carlsbad Cavern, home to one of North America's largest underground chambers. But there’s much more to this subterranean world than gigantic geological formations. It's also the theater of a microbial war that’s been raging for thousands of years, right beneath our feet.

Explore the seeming impossibilities behind our planet’s strangest, most unique natural wonders in Untold Earth, a new series from Atlas Obscura, in partnership with Nature and PBS Digital Studios. From fragile, untouched ecosystems to familiar but unexplained occurrences in our own backyards, this series chases insight into natural phenomena through the voices of those who know them best. 

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