Last update 4 December 2023
Mileages are given in the form miles.chains unless stated otherwise. Figures prefixed with ≈ are approximate, those in parentheses are not on this route but are given for reference. Reference to 'start'/'end' of an asset are as read down the page.
13.03 Pontypridd North Junction with CAM 13.26 Rhondda Cutting Junction with POP (0.17) 13.50 Coke ovens yard 13.72 GYFEILLON 14.59 Trehafod Junction with CTD (16.53) 14.72 TREHAFOD formerly HAFOD 15.08 Eirw Branch Junction with EIW ≈15.09 HAFOD 15.42 Llwyncelyn 16.10 PORTH [2] 16.13 Rhondda Fach Junction North with MDY 16.21 PORTH [1] 16.26 Cymmer Level 16.39 Troedyrhiw colliery 16.70 Dinas siding 17.30 PANDY possibly at 17.23 17.41 DINAS RHONDDA formerly D.; D. MID GLAMORGAN 18.03 TONYPANDY formerly TREALAW; T. & TREALAW 18.11 Pwllyrhebog Junction with PYZ 18.39 Llwynypia Lower 19.07 LLWYNYPIA 20.02 Ystrad gas siding 20.05 YSTRAD RHONDDA 20.32 GELLI 20.53 Maaendy Ystrad 20.76 TON PENTRE formerly YSTRAD; YSTRAD RHONDDA 21.28 PENTRE 21.45 Ty Ny Bedw 21.50 Cwm Parc Junction with Park colliery lines 22.02 TREORCHY 22.34 TYLACOCH 22.61 Ynyswen siding 22.70 YNYSWEN 23.08 Ynysfeio 23.29 Bute Merthyr 23.46 Treherbert locomotive depot 23.54 TREHERBERT 23.69 later end of line 23.71 Rhondda & Swansea Bay/Treherbert Junction with RSB (0.00) 24.04 end of sidings 24.27 Dunraven Junction with BLA 24.43 BLAENCWM built but never opened 24.46 end of line Note that 24.27-24.46 was originally called Dunraven Siding