| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | |
|---|---|---|---|---|---|---|
| 1 | ↕ | Brynamman West Station | – | |||
| 2 | ↕ | Garant Station | 1m 1177yds | |||
| 3 | ↕ | Glanamman Station | 0m 1325yds | |||
| 4 | ↕↓ | Ammanford Colliery Siding | 2m 1045yds | |||
| Ammanford Colliery Halt | ||||||
| 5 | ↕ | Ammanford Station | 0m 594yds | |||
| 6 | ↕ | Pantyffynnon Garnant Branch | 0m 1529yds | |||
| Pantyffynnon Station | ||||||
| 7 | ↕ | Pantyffynon South | 0m 352yds | |||