Spanning 277 miles and attaining a depth of over 6,000 feet, Arizona's Grand Canyon ... the mighty river is still and smooth, reflecting the finest details of the canyon walls like a shiny mirror.

Dam maintenance and non-native fish reduction efforts led the government to reject environmentally restorative flood in Grand ...

The immense walls form a kind of cocoon ... Cowboy coffee on a propane burner. At Mile 0 of the Grand Canyon, the river is running at 198cu m per second, rising toward 255cu m – not the lowest ...

The towering ancient rock walls of the Grand Canyon were on ... One of the best-maintained hiking trails from the Colorado River in the Grand Canyon was the Tapeats Creek to Deer Creek hiking ...

The two sites are accessible from the North Rim on a river bend about 29 miles northwest of Grand Canyon Village on the ... scenic views of colorful rock walls and canyons, waterfalls and pools ...

Hells Canyon is the deepest river canyon in the United States. Now scientists have solved the mystery of when it formed.

This river canyon, measuring 278 miles long ... Scientists read the history of North America in the layers of its rock walls. The Grand Canyon is one of the Seven Natural Wonders of the World ...

It's tucked away in the remote high desert country of southeastern Utah, where geology dazzles with the night skies.

Lake Mead captures the water on the Grand Canyon’s west end and stores ... s natural environment as the sandstone walls looming above the river. “It is disturbing that sand bars always come ...