Travel + Leisure on MSN

The Tallest Underground Waterfall You Can Visit in the U.S. Is Hidden Inside This Tennessee Mountain

Ruby Falls is an underground waterfall located over 1,000 feet beneath Lookout Mountain in East Tennessee. Travelers visit ...
Billings Gazette

Popular Cody-area cave closed after collapse

Spirit Mountain Cave has been temporarily closed after a minor collapse made the cave unsafe for visitors. Permits will not be issued until further notice. "The BLM is working to ensure the cave is ...