Grand Canyon America's wild spaces /
A rare scientific odyssey down the Grand Canyon through some of the most treacherous rapids on the planet. From the river cutting through two-billion-year-old stone to the creatures roaming its back-country, the Grand Canyon still has secrets to tell.
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| Format: | Video |
| Language: | English |
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Washington, D.C. :
National Geographic,
2009.
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| Series: | National parks collection ;
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