NOVA
Rafting Through the Grand Canyon
TV-PG
S19 • E14 Oct 27, 1992 55mNOVA 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.
