Photograph of a bend in Glen Canyon of the Colorado River, Grand Canyon, ca.1898. The towering nearly-vertical rocky canyon walls loom over the placid river. The canyon rim is visible in the distance.

A trip to Las Vegas wouldn't be complete without experiencing the awe-inspiring natural wonders just outside of it ... including the glass-bottomed Grand Canyon Skywalk bridge (for an added fee).

Cutting‑edge dating reveals driftwood high in Grand Canyon caves 55,250 years ago when a meteor’s shock wave blocked and ...

The Grand Canyon is one of the seven natural wonders of the world. It's 277 miles long and, on average, 10 miles wide. Here are 13 things you probably didn't know about the Grand Canyon.

Per the park service, most of the Grand Canyon’s estimated 5 million annual visitors visit the park’s South Rim. When it comes to maintenance, the Transcanyon Waterline is overdue.

From the Gregory Natural Bridge, ... Grand Canyon, ca.1898. The towering nearly-vertical rocky canyon walls loom over the placid river. The canyon rim is visible in the distance.