Dry Falls

Posted by
Don (Spokane, United States) on 15 June 2016 in Landscape & Rural.

Dry Falls is a 3.5 miles (5,600 m) mile long scalloped precipice in central Washington, on the opposite side of the Upper Grand Coulee from the Columbia River, and at the head of the Lower Grand Coulee. At five times the width of Niagara, Dry Falls is thought by some to be the greatest known waterfall that ever existed, but the refilling of the Mediterranean 5 million years ago probably dwarfed it. According to the current geological model, catastrophic flooding channeled water at 65 miles per hour through the Upper Grand Coulee and over this 400-foot (120 m) rock face at the end of the last ice age. At this time, it is estimated that the flow of the falls was ten times the current flow of all the rivers in the world combined.