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9780823956418
The Grand Canyon is one of the most amazing sights on Earth-a gorge 277 miles (446 km) long; a wonderland of soaring cliffs made of rocks that are stained many colors. Scientists are learning a great deal about how old planet Earth is based on the layers of rock found in the Grand Canyon.Weintraub, Aileen is the author of 'Grand Canyon The Widest Canyon', published 2001 under ISBN 9780823956418 and ISBN 0823956415.
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