KSPS Documentaries
Sculpted by Floods: The Northwest's Ice Age Legacy
Special | 57m 20sVideo has Closed Captions
Join the scientists as they struggle to decipher this story.
It is a story of the earth's power, scientific discovery and human nature - one touted by enthusiasts as the greatest story left untold. During the last ice age, floods flowing with ten times the volume of all the world's current rivers combined inundated the Northwest. What left behind was a unique and often puzzling landscape that we call home.
KSPS Documentaries is a local public television program presented by KSPS PBS
KSPS Documentaries
Sculpted by Floods: The Northwest's Ice Age Legacy
Special | 57m 20sVideo has Closed Captions
It is a story of the earth's power, scientific discovery and human nature - one touted by enthusiasts as the greatest story left untold. During the last ice age, floods flowing with ten times the volume of all the world's current rivers combined inundated the Northwest. What left behind was a unique and often puzzling landscape that we call home.
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KSPS Documentaries is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
The Acceptance of J Harlen Bretz’s Ice Age Flood Theory
Video has Closed Captions
J Harlen Bretz provided photographic evidence of great floods (2m)
Video has Closed Captions
The Missoula floods carved new river channels or altered exiting ones (4m 9s)
Video has Closed Captions
Geologists conducted studies that the great flood occurred multiple times. (4m 38s)
Video has Closed Captions
The Missoula floods flowed down to the Pacific Ocean, reshaping the surrounding landscape. (6m 17s)
Ice Dam and Glacial Lake Missoula
Video has Closed Captions
An overview of Glacial Lake Missoula (1m 11s)
Video has Closed Captions
Geologist J Harlen Bretz is the first to identify a theory of the ice age floods (4m 50s)
Joseph Pardee and Glacial Lake Missoula
Video has Closed Captions
Scientist Joseph Pardee gathered evidence about the existence of Glacial Lake Missoula (3m 38s)
Video has Closed Captions
Joseph Pardee confirmed Bretz’s theory of the ice age floods (4m 16s)
Landscape of the Pacific Northwest
Video has Closed Captions
How floods and glaciers have shaped the landscape of the Pacific Northwest (5m 24s)
The Speed of the Missoula Floods
Video has Closed Captions
The great Missoula floods flowed at 500 million cubic feet per second (2m 19s)
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KSPS Documentaries is a local public television program presented by KSPS PBS