No main cast listed for this episode.
NOVA — S19E14
Episode: Rafting Through the Grand Canyon
Air Date: 1992-10-27
Runtime: 55 min
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.