Grand Coulee was the destination of our recent trip east of the Cascades. We were on a low key geologic pilgrimage to explore the features of this fascinating area where a significant part of Washington State’s formation is laid bare.
Dry Falls, above, is a broad illustration of volcanic forces and ice age flows that formed today’s dramatic landscape. Over three miles wide, the falls was the site of catastrophic flooding at the end of the last ice age when a massive ice dam burst northeast of this region. It is estimated that the water flows through the Grand Coulee and Dry Falls was ten times the current flows of all the rivers in the world today. It has carved out a region of basalt volcanic cliffs and bluffs peppered with small lakes. I’ll show you more of the region over the next couple of days.