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Grand Canyon

(Encyclopedia) Grand Canyon, great gorge of the Colorado River, one of the natural wonders of the world; c.1 mi (1.6 km) deep, from 4 to 18 mi (6.4–29 km) wide, and 217 mi (349 km) long…

Grand Canyon Rim View

photos by Carol M. Highsmith Grand Canyon Vista Previous Next >> Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park…

Grand Canyon River View

photos by Carol M. Highsmith Grand Canyon River View Previous Next >> Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park…

Grand Canyon Splendor

photos by Carol M. Highsmith Grand Canyon Splendor Previous Next >> Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park…

Grand Canyon Vista

photos by Carol M. Highsmith Grand Canyon Vista Previous Next >> Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park…

Grand Canyon Watch Tower

photos by Carol M. Highsmith Grand Canyon Watch Tower Previous Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park SystemCarol…

The Grand Canyon: Photo Slideshow

photos by Carol M. Highsmith Grand Canyon Panorama Next >> Related Links How Old Is the Grand Canyon?Grand Canyon QuizGrand CanyonArizonaThe National Park…

How Old Is the Grand Canyon?

The Grand Canyon may be 10 million years older than we thought by Liz Olson Visit our Grand Canyon Slideshow.Photo of the Grand Canyon courtesy of Carol M. Highsmith…

Geology of the Grand Canyon: The Cretaceous.

THE EOCENE.THE JURASSIC.THE CRETACEOUS.The platform immediately below the Pink Cliffs is picturesque rather than grand. Rough rolling ridges of yellow sandstone, long sloping hillsides and…