Green after recent monsoon rains, Toroweap Valley spreads west, toward the Uinkaret Mountains. Rabbitbrush and sunflowers splash the remote expanse,...

At 6 p.m. on a late-June evening, it’s 102 degrees at Stella Tucker’s campsite at Saguaro National Park. A graniteware pot bubbles over a fire, the...

Galileo named the aurora borealis, or the northern lights, in the early 17th century, honoring Aurora, Roman goddess of the dawn, and Boreas, Greek...

William Randolph Hearst was a man accustomed to getting his way. Heir to a mining and ranching fortune worth hundreds of millions in today’s dollars...

I am the Grand Canyon. My other names are Beethoven and Wagner,  Immortal as Sorrow, deathless as Love. My solitudes are limned in...

When Tom Myers was in the final months of an internal medicine internship at St. Joseph’s Hospital in Phoenix in the late 1980s, he feared he’d made...

The Colorado River flows through Granite Gorge, a rugged section of the Canyon, at sunset in a view from the north side of the river. Granite...

Even to those who have seen you only in pictures, you are a mind-boggling sight, a colossal spectacle, an enormous tear in the earth, a vast and...