NOVA · Season 20 · Episode 5
“Rafting Through the Grand Canyon”
Aired Wednesday 28 October 1992
NOVA explores Earth's greatest natural wonder by rafting down the river that created it, repeating the spectacular first canyon voyage of the 19th-century explorer John Wesley Powell. The Grand Canyon tells the story of nearly 2 billion years of Earth history plus the changes caused by three decades of human intervention.
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