Last update 1 May 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.
0.00 junction with PTZ (0.05) 0.55 reversal point and junction with Court Sart Branch To SWMR 1.09 Balls yard 1.20 bottom of incline 2.16 top of incline 2.54 CRYTHAN 3.16 Bwlch colliery 4.40 Aber Rhondda colliery 4.74 Blaenavon Junction with BOZ (0.00) 5.14 Blaenafon Junction with Tonmawr colliery line (0.00) 5.31 Tonmawr West Junction with SWJ (5.55) 5.51 Tonmawr East Junction with WHI (0.00) 6.62 convergence with PDZ (1.72) 6.70 junction with PDZ (2.01) 8.51 Corrwg Vale colliery siding 9.40 Cymmer North Junction with CYM (11.32) 9.45 CYMMER CORRWG formerly CYMMER 10.38 NANTEWLAETH 11.54 GLYNCORRWG 12.43 SOUTH PIT [2] on realigned route 12.50 SOUTH PIT [1] on original route 12.67 NORTH RHONDDA formerly BLAENCORRWG & N. R. 13.03 junction with Blaencorrwg and North Rhondda colliery lines