Geological history
Originally published on Mon May 21, 2012 5:11 pm
By Anna King

Photo by
Bruce Bjornstad, of Richland, near the Potholes Coulee near Quincy, Wash. Photo by Bruce Bjornstad

Photo by
A new book “On the Trail of the Ice Age Floods: The Northern Reaches” is out, it details how geologic features in the Northwest were formed, like the Dry Falls in Washington, shown here. Photo by Bruce Bjornstad

Photo by
“On the Trail of the Ice Age Floods: The Northern Reaches” is a geological field guide to northern Idaho and the Northwest’s channeled scabland.
RICHLAND, Wash. – A new book details how a dramatic series of Ice Age Floods transformed the landscape of the inland Northwest.
The new book called, “On the Trail of the Ice Age Floods: The Northern Reaches,” details what happened when floods whooshed into the Northwest and created the channeled scablands.
Bruce Bjornstad spent five years researching and writing his geologic guidebook. One fact in the book: It might have been as many as 1,000 floods that shaped the region, not just two or three big events.
Read more