Mystery of the Megaflood

Overview: The Channeled Scablands in Washington state defied conventional explanations for their formation for decades. Little by little evidence mounted for an old theory that was rejected by the scientific establishment. It involved glaciers, volcanoes, a relatively minor river and a prodigious amount of water. Originally aired as an episide of NOVA.

Status: Released

Release date: September 20, 2005

Countries of origin: United States of America,

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