AMP: Parma Spur Hwy #489/12 Location: OR 452 and OR 454, Malheur Cty Just after the 454 junction, we’ll make the only fully-within-Oregon crossing of the Snake River. AMP: 12 Location: OR 454 and OR 201, Malheur Cty Just over the bridge, we’ll approach Oregon 201. Follow 201 north to Nyssa and 201 south to Homedale, Idaho. … Continue reading Oregon Route 452, OR 454 to OR 201