This story appears in the January 2011 issue of National Geographic magazine. “Past the hand of dog, watch out for dinosaurs,” says a voice in the dark. I recognize Jonathan Sims’s clipped ...

We set out to explore what might be the biggest river cave we’ve ever seen ... Riverfront Pools and a Panoramic Sauna With Rocky Mountain Views—and It Sources Water From the Deepest Hot ...

Announced on January 22, a section of Newton County Road 5 will be closed, in coordination with Newton County and the Buffalo National River. Widely known as Cave Mountain Road, the temporary ...

Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the mile-long Lava River Cave was formed. Today, visitors can explore the cave's cool, dark expanse by ...