MP: Baker-Copperfield Hwy #12/2.73 Location: Baker-Copperfield Hwy and I-84, Baker City Stay straight for Oregon 86 which heads through the mountains to the base of Hells Canyon at the  Idaho-Oregon state line. Turn left for locally-maintained OR 203, which heads to the Baker City airport and then up to the state highway.  E to OR 86S … Continue reading Oregon Route 86, I-84 to OR 203