swells the Colorado River. By the time the river courses into Arizona and roars into the plateau country's most dazzling feature, the Grand Canyon, it is plowing a furrow more than a mile deep.

You can also follow the Bright Angel Trail (on foot or by mule) from the Grand Canyon Village down into the canyon. This 12-mile round-trip trail offers close-up views of the Colorado River and ...

One such landscape is the Colorado Plateau, which spans more than 336,000 square kilometers (83 million acres) across four states and encompasses iconic sites such as the Grand Canyon and Arches ...