Nick on the Rocks

Discovering Ancient Lakes at Potholes Coulee (6x3)

Data emisji: Gru 19, 2024

Just north of the famous Gorge Amphitheater 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.