Washington's Sunset Highway

The Sunset Highway works its way east to west across the 300—mile—wide expanse of Washington State from the Spokane River to its ending at Seattle on Puget Sound. Later known as Highway 10, the route traverses a landscape of big cities, small towns, and wide—open spaces; rolling hills and rugged mountains; fertile fields of grain, apple orchards, and ranches; roaring streams, deep rivers, and rock—walled coulees—now dry, but once a mighty watercourse. The Sunset Highway arose from a collect...