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NOVA - Season 44 Episode 25

NOVA - Season 44 Episode 25 - Documentary TV Shows 55:14. story about All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.

Released: Mar 03, 1974

Runtime: 55:14

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Networks: PBS

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