Get behind the wheel and settle in for an epic road trip, as this sprawling highway takes you through Montana, Wyoming, Idaho ...

Workmen plant electricity poles in the rust-orange earth of the Navajo Nation and run cables to Christine Shorty's house -- ...

Fast-spreading wildfires have forced the evacuation of part of the Grand Canyon, with the US National Park Service ordering ...

A dog fell 100 feet into an Arizona mine shaft near White Hills. Rescuers saved the uninjured dog using a rope system, reuniting it with its owner.

Why is the smell of Arizona's monsoon so distinctive? It releases the aromas of the desert, one ecologist says.

Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress.

In the desert of landlocked Arizona, where the Colorado River crisis has put water use under a microscope, Mainstream Aquaculture has a fish farm where it’s growing the tropical species ...