The National Park Service is investigating a mysterious illness after multiple Grand Canyon rafters reported severe symptoms ...

The Dragon Bravo Fire upended lives on the Grand Canyon National Park's North Rim.

Grand Canyon National Park has a new wildlife management strategy, and it runs on four legs and a loud bark. A specially ...

A rafting trip through the Grand Canyon left a Utah man fighting an unknown illness, but he's not the only one dealing with ...

A mysterious illness has been plaquing a group of white water rafters who took a recent trip through the Grand Canyon, ...

For more than 150 years, scientists have debated when and how the Colorado River first carved its way through the Grand ...

Wildland firefighters are fighting two blazes in northern Arizona, one of which is threatening structures near the Grand Canyon.

Tourism is down. Can Grand Canyon still draw crowds, despite higher travel costs and $100 nonresident fee? We spoke to ...

Hikers were on trails in the Inner Canyon, where officials said temperatures in the shade could reach 109 degrees around midday.

President Donald Trump said an interim agreement to end the war with Iran was "over" and that the United States was likely to ...

Public outcry after the collision led to the modernization of air traffic control.

I wore this robot exoskeleton in the Grand Canyon to see if it could help me manage my spinal stenosis and keep pace with my ...