This one-day itinerary includes the best of Grand Canyon's South Rim, including El Tovar, Mather Point, Bright Angel Trail and Desert View Watchtower.

Starting just west of the Yavapai Geology museum on the canyon rim, visitors can walk backward in time from today toward the oldest rock in Grand Canyon, Elves Chasm gneiss (1,840 million years old).

The Grand Canyon may rewrite the textbooks on the Cambrian ... 500 million years ago," paper author and Utah State University geology professor Carol Dehler said in a statement.

Each meter walked on the timeline trail signifies one million years of Grand Canyon's geologic history, and there are samples of rock and exhibits that explain how the Grand Canyon was formed.

The Grand Canyon is the biggest canyon on earth ... In 1869, a one-armed Civil War veteran and geology professor named John Wesley Powell led an expedition to chart the wild Colorado and make ...

Search crews recently found the body of a California man in Grand Canyon National Park. The man, who has not yet been identified, was found on Feb. 10 near the Yavapai Geology Museum, according to ...