America's Wild Spaces: Grand Canyon(2008)

片长:50分钟

主演:Rodney Schumacher 

导演:未知编剧:Gareth Harvey

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Plot Summary:National Geographic joins a rare scientific expedition to explore the 277 mi. of the Grand Canyon. Explore its geological history, study the microscopic colonies of vegetation and examine its unique creatures to unlock mysteries of this great wonder.

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