"Sinkholes are most common in what geologists call, 'karst terrain'," the US Geological Survey explains. "These are regions ...

Rockport State Recreation Area is known to have exposed fossils from the Devonian period – more than 400 million years ago.

The South is home to some of the country's best state parks that offer stunning scenery and all kinds of recreation. If ...

This edition, Olivia interviews Rob Abram who has cultivated, mastered and shares his hobby of hunting and tumbling some of ...

One of the world's deepest and most dangerous caves lies in Abkhazia, a disputed part of Georgia. It takes days to get to the ...

Ahead of me, my wife is pointing out several low-hanging ceilings and tight squeezes that I’ll need to maneuver my 6-foot frame around so I don’t knock my head square on a rock. On more than ...

To find the Groundwater Vein campsite in Area 14, look for the cave east of the oasis in the plains. Head underground and drop to the very bottom of this cave. As soon as you do, look left to spot a ...

In a remote region of British Columbia, the Chilko River offers isolation, elite paddling, and continuous rapids.

From the glaciers in Patagonia to the sand dunes in Namibia, here are 57 gorgeous photos of the last unspoiled places on ...

The world is filled with astonishing locations that defy belief, each with its own unique story and allure. Let's embark ...

She told KyCIR much of the state’s geology consists of karst regions, which feature sinkholes, caves and other gaps in the rock. She said groundwater flows ... The local system’s primary source of ...