Last update 5 October 2019
Mileages are given in the form miles.chains. 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 10.38 NANTEWLAETH 11.54 GLYNCORRWG 12.43 GLYNCORRWG SOUTH PIT [2 - on realigned route] 12.50 GLYNCORRWG SOUTH PIT [1 - on original route] 12.67 NORTH RHONDDA COLLIERY 13.03 junction with Blaencorrwg and North Rhondda colliery lines