... in the central part of Washington state and formed a series of canyons (called "coulees" -- largest being Grand Coulee in which DryFalls is located). DryFalls is thought to have been progressively eroded and has retreated some 20 miles ...
... of driving trough Amerika is the Geolicical history lesson you get on the road.
The lesson we got here was the one of DryFalls. A waterfall of 120 meters steep and 5 kilometers in width.
Most of Eastern Washington is a connection of ...