The original Suwon to Inchon line (수인선 협궤열차) ran all the way from Inchon harbour to Suwon (수원) station, but by the end of the existence of the line this was no longer the case. But like other parts of the line which were still there long after the railway had been closed the part from Ansan (안산) station to Inchon was completely demolished (save for a few bridge and some shorter stretches of line) only relatively recently when the new subway line from Oido (오이도) to Songdo (송도) was constructed on top of the old line. Even more recently other parts were demolished in order to contruct an interchange with the new Daegok-Sosa-Wonsi Line, meaning that a new station (Choji, 초지역) will come into existence soon, replacing Gongdan (공단) Station. Even then however there are still remnants left out there, between Gojan (고잔) station and Ansan station.
After a visit to the Korean topographical services in Suwon I ended up with a lot of maps (both 1:25.000 and 1:50.000) of the whole length of the Suwon to Inchon narrow gauge railway. The office had created 3 map sets for me: 1975, 1987 and 1996, or effectively the 1970s, 1980s and 1990s. Besides those historical sets (which can only be bought in Suwon) I also bought the current set of maps. This meant I now had highly detailed maps of the entire line. And then I noticed some strange effects… An example can be found on map NJ-52-9-18. This map is part of the 1:50.000 series and is available from a series of years. In this particular example I am showing the 1974, 1985/1987 and 1987/1996 versions of this map.
The whole area in present day Ansan in 1974 (click on the picture for a larger size). During this period Chinese characters were still very common in official publications and maps were no different. The stations on the SuIn line can be seen quite readily on this map, but not every station has been explicitly named. One name, 일리(역) or Illi station, can only be found on this map and the 1985 version of the map, after the opening of the commuter line this became Handaeap Station (한대앞역), by which name it can still be found on the map today.