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

In this secluded paradise, mail still arrives by mule, turquoise cascades tumble into travertine pools, and time flows at the ...

A wildfire along the Grand Canyon’s North Rim grew rapidly over the weekend and destroyed a historic lodge and visitors ...

If you’re wondering how to make the most out of your Arizona State Fall Break, you’ve landed in the right place! This ...

So far, Sky Harbor has measured 0.16 inches of rainfall to date, compared to a normal of 0.38 inches. The entirety of the ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico ...

The building was surrounded by vegetation on fire when a team of “helitack” firefighters arrived to protect the area on ...

The U.S. Forest Service is looking for volunteers to help plant tens of thousands of trees in mountains surrounding Flagstaff ...

An upcoming episode of the PBS documentary series “Human Footprint” focuses on the Colorado River and premieres in Flagstaff ...

The White Sage Fire, burning in northern Arizona near the destructive Dragon Bravo Fire, continues to grow with evacuations ...