Last update 4 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 Tanygroes West Junction with AVN (0.11) 0.49 Margam Forge siding 1.75 Maesmelyn colliery 2.01 CWMAVON 3.08 Oakwood Junction with RSB (10.52) 3.68 Penstar colliery 4.56 EFAIL FACH 5.07 Blaenavon Junction with BNZ (0.00) 5.49 TONMAWR JUNCTION 5.55 Tonmawr West Junction with SMI (5.31)