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The Grand Canyon is millions of years old. A mere 5000 years ago, it looked just as it does now, without the man-made improvements. In 5000 years, there would have been minimal further erosion of the river bed, but you would scarcely notice this in such an immense canyon.

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15y ago
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10y ago

it was just mountains

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Q: What does the grand canyon look like 17 million years ago?
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