How is the drive on US 12 from Yakima to Morton? Are there steep grades and sharp curves? Not sure if should come from Yamika or from I 5. We would be traveling from Spokane. Thanks,
Yes. It does climb thru the Cascades, it does follow rivers for a good portion of the road. From Spokane to where? To Portland and points south follow I90 at Ritzlville turn south on US395 toward tri cities. I82 south th I84 west to Portlandis probably the best. If your going north then I90 to Seattle.