John Wayne Pioneer Trail (West) Professional Review and Guide
"The John Wayne Pioneer Trail crosses most of Washington State. A developed portion lies within the Iron Horse State Park. This historic trail parallels I-90 from Cedar Falls, near North Bend, to Kittitas, then drops south through US Army land to end at the magnificent Columbia River. This trail passes through various climatic zones. West of the Cascades are the wet and green Cascade foothills.
East of the mountains you’ll find glacial valleys with coniferous trees and ranchland. As you continue east, the landscape changes to sagebrush desert, arid scrublands, and the irrigated farmlands of the Columbia Basin. East of Thorp the trail is shadeless and dry, hot in summer and cold in winter. Bears, bobcats, cougars, rattlesnakes, eagles, ospreys, rodents, and rabbits inhabit different parts of the trail."