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Grand Canyon 1

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Grand Canyon winds along the Coloradoriver through the american state Arizona which bords to Mexico. Grand Canyon have been appearing by the river which have been worn on the bedrock through four million years and now Grand Canyon is about 1 800 meters deep and 16 km wide, and it´s still getting deeper. Climate 25 000 years ago when the interior ice melted off it was moist and cold, and the tre...