Jewel Cave, located 13 miles west of Custer, has more than 208 miles of “mapped and surveyed passage ways,” with hundreds of suspected passages yet to be explored, according to the National Park ...

A marble mine is built to extract stone, not uncover natural wonders - but that’s exactly what happened here. Deep inside the ...

Being part of the United States drift. This region debuted has some very interesting geography. It gives us *** unique opportunity to start our exploration. Not from the historic north end, not from ...

From cave kisses to albino creatures to crystal clear pools, caves and caverns are a unique world to discover for travelers.

Inside Look is a Fresno Bee series where we take readers behind the scenes at restaurants, new businesses, local landmarks and news stories. After a four-year closure due to natural disasters, Crystal ...

Crystal Cave, located in Sequoia National Park, will reopen to the public on May 23 after a four-year closure due to fire and weather damage. Visitors can purchase tickets for guided tours starting ...

Spooky, wonderous, stalactite-y: Crystal Cave in Sequoia National Park returns this summer season for guided tours after a four-year closure due to consecutive natural disasters in the national park.

It’s like entering another world that was built over tens of thousands of years. Caves offer an experience unlike any other, a chance to learn about the earth’s history and see the effect of the ...

Just two weeks after an Indiana woman made headlines by finding a crystal resembling fried chicken, the National Park Service has unveiled an equally strange formation in a remote South Dakota cave ...