Lines Wales Main lines North Wales Coast Line South Wales Main Line Shrewsbury–Chester line Welsh Marches line Cardiff commuter lines Butetown branch line Cardiff City Line Coryton Line Ebbw Valley Railway Gloucester–Newport line Maesteg Line Merthyr line Rhondda line Rhymney line Vale of Glamorgan Line Rural lines Borderlands line Cambrian Line Conwy Valley line Heart of Wales line West Wales lines Lines under construction References Note: many maps cited are dead links as of 2016. Current maps are on the National Rail Enquiries - Maps of the UK National Rail Network Web site. See also List of closed railway lines in the United Kingdom Railway lines in the United Kingdom