Namtaeryeong Station

Namtaeryeong Station is a station on the Seoul Subway Line 4. It is the southernmost station on Line 4 that is operated by Seoul Metro. The name of this station literally means "great southern pass," referring to a passageway linking Seoul and Gwacheon, between Mt. Gwanak and Mt. Umyeon. Most of the provincial railways in South Korea were built during the Japanese occupation of Korea. The left-hand track is still used for trains. But the Seoul Metro, which was constructed much later in the 1970s, used the right-hand track for its subway lines, including Line 4. Therefore, between Namtaeryeong and Seonbawi Stations, where the two lines connect, the underground tracks must cross over from left-to-right and right-to-left.