Time Travel in the Grand Canyon
Clip: Season 42 Episode 20 | 4m 33s
What does this geological wonder reveal about North America’s deep history?
Aired: 11/04/15
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS …
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by the NOVA Science Trust.
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