| Section of Line | Opened | Closed | Notes |
|---|---|---|---|
| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | |
|---|---|---|---|---|---|---|
| Nelson and Llancaiach | ||||||
| Ffaldcaiach Sidings | ||||||
| Trelewis Platform | ||||||
| Taff Merthyr Colliery Halt | ||||||
| Bedlinog | ||||||
| Bedlinog Colliery Jn. | ||||||
| Cwmbarfoed | ||||||
| Penydarren Platform | ||||||
| Dowlais Junction | ||||||
| Dowlais Caeharris | ||||||