Which river flows through the Grand Canyon?

Rio Grande
Colorado
Snake
Sacramento
Colorado River established its course through the canyon at least 17 million years ago. Since then, it exposed about two billion years of the Earth's geological history.
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Rio Grande
Colorado
Snake
Sacramento
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3%
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63
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0%
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44
flagthe Netherlands
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4%
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42
flagthe United Kingdom
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70%
3%
2%
330
flagAustralia
18%
70%
4%
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70
flagNorway
35%
65%
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20
flagIndia
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7%
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149
flagIsrael
43%
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6%
16