History Channel Documentaries

Secret Earth: Yellowstone Supervolcano

TV-PG
2015 • E17    Dec 20, 2015    43m
High-school science teacher Craig Beals digs into one of Americas biggest mysteries, the Yellowstone super volcano; Craig is on a mission to find out when it erupted last.

Where to Watch Secret Earth: Yellowstone Supervolcano

 

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