The P'yŏngbuk Line is an electrified standard-gauge secondary line of the North Korean State Railway running from Chŏngju on the P'yŏngŭi Line to Ch'ŏngsu; it meets the Ch'ŏngnyŏn P'alwŏn Line at Kusŏng.A yellow background in the "Distance" box indicates that section of the line is not electrified.