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 ...

On the edge of the Peloponnese, Kastania Cave is a three-million-year old geological wonder with breathtaking stalactites and ...

PORTLAND, Oregon — Researchers were recently surprised to find that calcite is still accumulating in a kilometers-long, continuous trough of a New Mexico cave that may be the world’s longest cave ...

Stashed away in Sequoia National Park are over 240 caves with maybe hundreds more undiscovered. One of the most amazing is Lilburn Cave, a marble labyrinth and California's deepest cave at over 20 ...

In the middle of our Cave of the Mounds tour, the guide asked if we wanted to experience what “total darkness” was like. Of course, the answer was yes. My 6-year-old nervously grabbed my hand. Then ...

Editor’s note: This story first published on Dec. 1, 2017. Full of wonder with its showcase of colorful crystal formations, Ohio Caverns is a hidden treasure in West Liberty. Here are five things to ...

KARTCHNER CAVERNS, AZ (3TV/CBS 5) - The story of Kartchner Caverns is one of discovery, exploration, secrecy, and preservation. It begins in rugged old Arizona’s southern desert where it might be hard ...

Two years passed since the public could walk through the 200-feet-deep cave of Blanchard Springs Caverns — the COVID-19 pandemic, repairs and the spread of white nose syndrome among bats put on the ...

The rock formations in caves are chemistry fossils — that glow. These rocks are made of calcite, a form of calcium carbonate. Impurities trapped in calcite cause the mineral to fluoresce different ...

What better time to learn about and plan a visit to a cave than this year, dubbed the first ever International Year of Caves and Karst by the International Union of Speleology. Karst can be found ...

Caves conjure up images of dangling bats dangling, stalagmites and stalagtites rising from floors and ceilings and dark, dank holes that seem to to go on forever. Here are the seven longest caves of ...