News, views and advertising of the Grand Coulee Dam Area
News, views and advertising of the Grand Coulee Dam Area
Nick Zentner displays a slide of lava erupting in Iceland in 2014 to show how lava came from cracks in the Earth in this region to form the layers of basalt we see on the coulee walls. - Scott Hunter photos
Not only did dozens of gigantic floods shape the local landscape thousands of years ago, they raced across the solid-rock remains of hundreds of layers of lava flows that built the local bedrock millions of years earlier.
So said Geologist Nick Zentner to roughly 130 people at the Grand Coulee Dam Visitor Center on Saturday, brought to town by the Grand Coulee Dam Rotary Club.
Zentner, who hosts t...
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