The umbrella leaks at places called sinkholes, from which surface water makes its way underground, eroding the limestone into a honeycomb of caverns ... temperatures in interior passages fluctuate ...

Korrin Bishop With more than 5 miles of naturally formed underground tunnels and chambers, Raccoon Mountain Caverns is one of the most geologically active cave systems in the South. For those that ...

From Chattanooga, drive about an hour east to Craighead Caverns to find the world’s ... cascading more than 1,120 feet beneath Lookout Mountain. In the evening, backtrack a half hour west ...

The University of Tennessee at Chattanooga (UTC) has announced that the Raccoon Mountain Caverns are now officially part of ...