Firefighters are battling a lightning-caused wildfire on the North Rim of the Grand Canyon. The Dragon Bravo Fire has burned ...

In this handout image provided by Grand Canyon National Park, firefighters and emergency vehicles are positioned in front of the Dragon Bravo Fire, with intense flames and thick smoke at Grand Canyon ...

With the rain pouring and thunder rumbling overhead, we entered one of the most dangerous environments a caver can face - a low airspace river cave during a storm. In this video, we battle rising ...

The visitor center and a wastewater treatment plant were among the 50 to 80 structures lost, the park superintendent said.