| 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 | |
|---|---|---|---|---|---|---|
| Merthyr | ||||||
| Rhydycar Junction | ||||||
| Werfa Loop | ||||||
| Abernant | ||||||
| Llwydcoed | ||||||
| Gelli Tarw Junction | ||||||