The almighty Grand Canyon earned its status as a globally recognized wonder of the world not merely for its epic size and dazzling depths, but also because of its eye-catching red rock coloration ...

But in Hells Canyon, the rock walls close to the river were so steep, they didn't have these shelves. So Morriss went looking for old river sediments someplace else: inside of caves.

But in Hells Canyon, the rock walls close to the river were so steep, they didn’t have these shelves. So Morriss went looking for old river sediments someplace else: inside of caves.

Passengers travel over historic trestle bridges and through a 734-foot-long tunnel, following 20 miles of the Verde River. Views include Sycamore Canyon, red rock pinnacles and cliffs, Sinagua ...

The CFS of the Colorado River also takes a hike when it joins with the Green. The rolling water transports travelers through the park’s 300-million-year-old rock walls, which are impassable by foot.

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. LAKEVIEW — Originating at the outlet of Lima Reservoir, the relatively narrow Red Rock ...

The Grand Canyon is stunning. At Outside, we’re in love with that giant ditch, and chances are, you are, too. This river canyon, measuring 278 miles long, roughly 10 miles wide, and in places ...

View of the towering limestone canyon walls on the Presa Canyon Hike. Photograph by Saba Khonsari. Fate Bell is considered the region’s largest rock shelter and is iconic of the Pecos River ...