The Paektusan Ch'ŏngnyŏn Line is an electrified standard-gauge secondary mainline of the Korean State Railway running from Kilju on the P'yŏngra Line to Hyesan on the Pukbunaeryuk Line; it connects to the narrow gauge Paengmu Line at Paeg'am Ch'ŏngnyŏn Station, and to the Samjiyŏn Line at Wiyŏn Ch'ŏngnyŏn Station. Wikipedia