Seoul City Route 21

Seoul Metropolitan City Route 21 () is an urban road located in Seoul, South Korea. With a total length of , this road starts from the Siheung Intersection in Geumcheon District, Seoul to Yeonsinnae station in Eunpyeong District. This route is a part of Asian Highway 1.

Stopovers

• Geumcheon District - Gwanak District / Guro District - Dongjak District / Yeongdeungpo District - Dongjak District - Yongsan District - Jung District - Jongno District - Seodaemun District - Eunpyeong District

List of Facilities

IS: Intersection, IC: Interchange

References