When big infrastructure projects spring up, one crucial law — the National Environmental Policy Act — has for decades been a ...

From mail-carrying mules to more than 3 billion people visiting the U.S. Postal Service’s website a year, the USPS has a ...

The wildfire that destroyed a Grand Canyon lodge this month was the latest blow to the National Park Service staffing and funding cuts.

The Dragon Bravo Fire that destroyed the North Rim lodge will affect visitors and nearby communities. Here's the Canyon's financial impact on Arizona.

The train also goes through tight canyon passages that add to the thrills of the panoramic views, which you won't see on interstate road trips or from planes. But these perks come with a hefty price ...

With fires currently ravaging the North Rim of the Grand Canyon, here are some positive memories from Arizona Republic readers.

The ancient meteor impact that formed Arizona's Barringer Crater sent shock waves through the Grand Canyon — likely triggering a landslide that dammed the Colorado River, a new study suggests.

Take it from Rick Steves, this unique way to travel offers a scenic and relaxing way to see Switzerland. Here are his top three train routes.

A wildfire that destroyed a historic Grand Canyon lodge is continuing to spread out of control after it had been allowed to burn for days.