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Watch NOVA Season 19 Episode 14 Online

  • 6.9/10
  • COUNTRIES: United States of America
  • Subtitles: English

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.