Here's what we know about the two wildfires that have destroyed tens of thousands of acres of forest and burned at least 70 structures.

Gov. Katie Hobbs and Senators Mark Kelly and Ruben Gallego are calling for an independent investigation into how federal ...

Wildfires burning at or near the Grand Canyon's North Rim are still raging as strong winds, high heat and low humidity ...

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

Fire activity on the North Rim of the Grand Canyon has forced the closure of several trails and campgrounds. Meanwhile, life ...

Arizona senators are demanding answers from the Department of the Interior about allowing an ongoing wildfire at Grand Canyon ...

The NWS warning was in effect for regions of the Grand Canyon below 4,000 feet elevation. Temperatures were forecast to ...

The Dragon Bravo Fire burning inside Grand Canyon National Park has destroyed dozens of structures, including a beloved and historic lodge.

Here's what's open and closed at Grand Canyon North Rim, South Rim and Phantom Ranch in the wake of wildfires that destroyed ...

Admirers of the Grand Canyon's North Rim are hopeful The Grand Canyon Lodge, an elusive getaway for nearly a century, will be ...

W hen an asteroid made Meteor Crater in northern Arizona, it did more than leave the Earth’s best preserved impact crater.

Eight candidates will go before southern Arizona voters at the ballot box Tuesday in special congressional primaries to replace longtime Democratic U.S. Rep. Raúl Grijalva.