While Indian Echo Caverns is closed due to flooding below ground, visitors can still get a peak at what's happening underground. "We're doing a sneak peak, so people can see what it's like to see ...

Since then - explorers have come to see the natural wonder. The Indian Echo Caverns in Derry Township. >> Kim Swartz: People can actually experience geology and see it growing- and changing over time.

There’s one place in Pennsylvania the chill of winter never touches: Indian Echo Caverns (368 Middletown Road, Hummelstown, Penn.). Located just two and a half hours from D.C., these limestone ...