


Ancient Lakes at Potholes Coulee
Geologist Nick Zentner, Senior Geology Lecturer, Central Washington University, leads viewers on adventures through WA's diverse landscapes, from massive lava flows and the planet's biggest Ice Age waterfall to wandering mountains and a flank of Mt. Rainier that traveled to Tacoma. Special thanks to CWU as the original creator and collaborator for Nick on the Rocks.
Ancient Lakes at Potholes Coulee
Season 6 Episode 3 | 8m 4s | CC
Just north of the famous Gorge Amphitheatre are two enormous lake-filled canyons that appear to feed into the Columbia River. But the canyons of Potholes Coulee weren’t carved by rivers, and the lakes at the valley floor might not be so ancient after all.
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