NOVA S20E5: Rafting Through the Grand Canyon
- Aired: 1992-10-27
- Time: 21:00:00
- Runtime: 60 minutes
Overview
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.