The Suin Line (Suwon-Incheon) was a metro line of the Seoul Metropolitan Subway serving the Seoul Capital Area. The original route, abandoned in 1995, was one of the few narrow-gauge railways in South Korea. Opened by the privately owned Chosen Gyeongdong Railway in 1937, it connected Suwon to Namincheon via Ansan and Siheung; in 1942, it was taken over by another private railway, the Chosen Railway (the largest of colonial Korea's privately owned railway companies). The Chosen Railway owned th…