Mystery of the Megaflood
- Episode aired Sep 20, 2005
- TV-G
Scientists now think that the Scablands' gorges, dry waterfall beds, scattered boulders and "potholes" were formed some 15,000 years ago when a natural ice dam holding an ancient lake burst.Scientists now think that the Scablands' gorges, dry waterfall beds, scattered boulders and "potholes" were formed some 15,000 years ago when a natural ice dam holding an ancient lake burst.Scientists now think that the Scablands' gorges, dry waterfall beds, scattered boulders and "potholes" were formed some 15,000 years ago when a natural ice dam holding an ancient lake burst.