| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| 1 | – | ↓ | Bargoed North | – | |||
| 2 | ↑ | ↓ | Groesfaen South | 0m 1551yds | |||
| Groesfaen Colliery Platform | |||||||
| 3 | ↑ | ↓ | Groesfaen North | 0m 1403yds | |||
| Darran and Deri | |||||||
| 4 | ↑ | ↕ | Deri Junction | 0m 1276yds | |||
| Ogilvie Village Halt | |||||||
| Ogilvie Colliery Platform | |||||||
| 5 | ↕ | Fochriw | 2m 973yds | CL 33 | |||
| Pantywaun Halt | |||||||
| 6 | ↕ | Dowlais Top | 2m 1215yds | CL 23 | |||
| 7 | ↕ | Pant | 1m 1281yds | CL 12 DRS 34 |
|||
| 8 | ↕ | Pontsticill | 1m 825yds | CL 50 | |||
| Dolygaer | |||||||
| 9 | ↕ | Torpantau | 3m 462yds | CL 28 URS 15 |
|||
| 10 | ↕ | Pentir Rhiw | 3m 1716yds | CL 25 | |||
| 11 | ↕ | Talybont-on-Usk | 3m 550yds | CL 38 URS 35 |
|||
| 12 | ↕↕ | Talyllyn Junction East | 2m 858yds | ||||
| Talyllyn Junction | |||||||
| 13 | ↕ | Talyllyn Junction West | 0m 792yds | ||||
| 14 | ↕ | Brecon | 3m 1562yds | CL 45 | |||