MP: Columbia River Hwy #2/193.9 Location: Columbia River Hwy and Pendleton Cold Springs Hwy, Cold Springs, Umatilla Cty Junction Oregon 37 coming up. Back in the day US-395 north followed Oregon 37 up to this point and then traveled east with US-730 to US-12 in Washington State MP: Columbia River Hwy #2/193.52 Location: Columbia River … Continue reading U.S. Route 730, WA State Line to OR 37