Nzira huru inoenderera mberi ichipfuura mugumo wekuchamhembe kweLewis-McChord Joint Base (yaimbova Fort Lewis neMcChord Air Force Base) uye Tacoma Canada Base, kwainosvika zvakare kuchamhembe kuSeattle. Ship Canal inoitakura pamusoro peBridge Bridge muSeattle BC. Nzira huru inoenderera mberi kuchamhembe kwakadziva kumadokero kuburikidza neWoodland kuenda kuKelso neLongview, panguva iyo inorega kuenzana nechikamu chikuru cheRwizi rweColumbia. Kuenderera kuchamhembe pakati peWillapa Hills neCascade foothills, mugwagwa mukuru unozopedzisira wasvika kuOlympia, uko unotendeuka zvakanyanya kumabvazuva.
Seattle