Arizona groundwater is a lifeline that sustains cities, tribal communities, farms, and plants and animals. Learn the basics.

Irvin Fink Jr. recently returned from his second time hiking the Grand Canyon rim-to-rim. Fink (front right) is seen with his grandson, Levi Benjamin, 12 (front left), son-in-law Jo Benjamin (rear ...

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

Grand Canyon Caverns and restaurant have opened after being closed for nearly 3 years. Here's why it closed and how to go into the Grand Canyon caves.

Grand Canyon National Park has launched a satellite-based emergency alert system, which allows visitors to receive real-time alerts about flash flooding and other hazardous events in cell service ...

This brave cleaning crew hangs from the Grand Canyon west rim's Skywalk twice a year.

Dangerously hot conditions are expected below 4,000 feet in elevation, prompting a warning for hikers.

The caverns sit atop the Grand Canyon Inn between Peach Springs and Seligman and are a worldwide tourist attraction.

Jordan McCabe has been hired by Grand Canyon coach Bryce Drew. McCabe, a former Kaukauna star, spent last season working under Doug Gottlieb at UWGB.

An unusually high number of hikers had to be rescued by helicopter on the Grand Canyon, and a construction site is to blame.