As the sun dipped low to the southwest of the Grand Canyon, tourists flocked to the rim. They lined up to catch the shuttle ...

(Whitmer denies he misled anyone.) A flight over the upper Grand Canyon offers a view of the edge of the Navajo Reservation (far side of the canyon). No single spot provides a view of the whole ...

The Grand Canyon is the biggest canyon on earth: 277 miles long, 10 miles wide, and a mile deep. It contains some of the oldest exposed rock on earth, Precambrian Vishnu schist, formed 1.7 billion ...