Actively growing cave formations such as thread-like helictites and soda straws crowd the walls of Kartchner Caverns in areas where drip water percolates into the cave. This visual may only be used in ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford. Eleanor has an undergraduate degree in ...

Fantastic Caverns is being restored over this fall and winter with help from Ozarks cave expert Jonathan Beard. Fantastic Caverns’ cave formations include an awe-inspiring display of columns, cave ...

San Francisco, Calif. -- Biofilms, which are complex layered communities of sulfur-consuming microbes, increase the rate of cave formation, but may also shed light on other biofilms, including those ...

Looking for an adventure that’s cool (literally) and completely out of the ordinary? The United States is home to some of the world’s most fascinating cave systems, each with its own story carved by ...

When the summer sun is blazing, there’s no better way to cool off than by heading underground. Caves offer a naturally air-conditioned escape, along with a chance to explore some of the Earth’s most ...

Most people come to Pictured Rocks National Lakeshore in Michigan’s Upper Peninsula for its namesake — the colorful, mineral-stained sandstone cliffs that line mighty Lake Superior. Those cliffs are ...