A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Drought, a warming climate and decades of firefighting policies that suppressed natural fires have turned many grasslands and ...

Built nearly 100 years ago, the remote lodge offered majestic views of one of our finest national parks before it burned in ...

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists ...

U.S. land managers have long known that they have a problem on their hands with overgrown forests and persistent drought.

The Grand Canyon fire continues to rage, impacting access and adding to the challenges faced by firefighters in the region.

The Grand Canyon, one of the most iconic geological formations on Earth, may hold deeper secrets about our planet’s history ...

Highway closures and evacuations remain in effect as a wildfire burns more than 58,000 acres in Coconino County. It is one of ...

The price of rent is a key factor when deciding where to live. From Phoenix to Tempe, here's how apartment prices compare in ...

There have been a lot of legal issues between the Mountain West Conference, the Pac-12, and the five teams exiting the ...

A new report has calculated that making national parks the responsibility of states would raise costs, cut revenue and reduce access for Arizonans.

WASHINGTON (AP) — President Donald Trump is granting two years of regulatory relief to coal-fired power plants, chemical ...