Last update 1 November 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 Tonmawr East Junction with SMI (5.51) 0.42 North End colliery 0.65 Lower Corrwg colliery 0.75 Garth No 1 colliery 1.15 Bryncorrwg colliery 1.33 CORRWG MERTHYR NAVIGATION COLLIERY also called TORYBANWEN COLLIERY or WHITWORTH 1.58 Cwm Pelena colliery