| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| 1 | - | ↓ | Merthyr | - | |||
| 2 | ↑ | ↕ | Rhydycar Junction | 0m 726yds | |||
| 3 | ↕ | Werfa Loop | 2m 875yds | CL 35 | |||
| Abernant | |||||||
| Llwydcoed | |||||||
| 4 | ↕ | Gelli Tarw Junction | 3m 259yds | ||||