This surprising connection between Arizona's world-renowned geological features stretches back 56,000 years, to when a ...

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

The Dragon Bravo Fire devastated over 70 structures at the Grand Canyon's North Rim, with only 8% containment.

Some effects of Arizona's Dragon Bravo Fire are clear, but what's happened to wildlife may not be known until the flames die down.

The Grand Canyon Lodge in far northern Arizona that was an elusive getaway for nearly a century has been destroyed by a ...

Heavy flooding just south of the entrance to Grand Canyon National Park prompted shelter-in-place orders, power outages and more than 100 evacuations of residents and guests, the Coconino County ...

What could possibly link a collision in space on the Arizona desert to a landslide that irreversibly altered the face of the ...

Two wildfires, one burning near the North Rim of the Grand Canyon and the other farther north on the Kaibab Plateau, have scorched over 70,000 acres of northern Arizona wildland, according to state ...