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Building in the Grand Canyon National Park which was one of the first national parks in the United States #182089662
Description
The canyon was created by the Colorado River over a period of 6 million years, but research released in 2008 suggests a 17 million year time span. The canyon is 277 miles 446 km long, ranges in width from 4 to 18 miles 6.4 to 29 km and attains a depth of more than a mile 1.6 km. Nearly 2 billion years of the Earth`s history have been exposed as the Colorado River and its tributaries cut their channels through layers of rock while the Colorado Plateau was uplifted
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