At first glance, Wyoming's Kane Cave exhibits few characteristics of the world's most picturesque caves — it lacks mineral deposits, including stalactites and stalagmites, which decorate most cave ...

The most common process by which limestone caves form involves carbonic acid — or weakly acidic groundwater — as the primary agent. When carbonic acid contacts limestone, it dissolves minerals in the ...

Dawn Ryan (front), cave manager at Forestville/Mystery Cave State Park in southeast Minnesota's Fillmore County, and Krista McDermid from Zara Environmental during recent research to inventory animal ...

Mammoth Cave National Park, home to the world’s longest known cave system, stretches for more than 680 kilometres, and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — Southern California is home to ...

The Paradise Lost formation is one of the most magnificent inside the Oregon Caves. It's a bit unnerving as you enter the pitch-black darkness, squeezing through one of many narrow corridors inside ...

Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...

BAYFIELD, Wis. >> Walking atop a frozen stretch of Lake Superior’s south shore, Jon Michels paused to look at a 30-foot-tall rippled ice wall cascading over a sandstone cliff cave. Then he noted ...

Missouri has a whole other world under the surface of the Earth. Far below the surface of Missouri, a state that is perhaps best known for Kansas City-style barbeque, Anheuser-Busch, and an odd ...

This Arkansas cave isn’t frozen in time. Discover Blanchard Springs Caverns, where limestone drapes, quiet chambers, and slow ...

Deep inside a handful of caves, scientists are pulling genetic secrets out of bones, teeth and even the surrounding dirt, and ...

Missouri has a whole other world under the surface of the Earth. Far below the surface of Missouri, a state that is perhaps best known for Kansas City-style barbeque, Anheuser-Busch, and an odd ...