Historically, there were two set of traditional train railways in Singapore; one northbound towards Malaysia (known as North-South Line) and the other was westwards to Jurong (Jurong Line).
The total length of the railway system in Singapore was then about 40km; 26km belonged to the northbound railway whereas the Jurong railway was 14km long.
At his geozone, one of the overhead rail way bridge is till standing across Upper Bukit Timah Road and it has been an iconic structure for the island.
For the cache, do be careful while approaching it as the sloppy terrain could caused a fall into the monsoon drain.
While placing back the cache container, do place the side with the magnets to attach back correctly.
Enjoy the scenery and have fun in geocaching.