Last update 2 March 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.
Original measure 0.00 original Hafod Junction with SWA (215.18) 0.36 LANDORE LOW LEVEL 0.78 PLAS MARL 1.53 COPPER PIT 2.03 MORRISTON WEST formerly M. 2.38 PENTREFELIN GLAM junction with link to MSV 3.21 Felin Fran West Junction with SDI2 (2.79) Later measure 0.00 later Hafod Junction with SWA (215.26) 0.08 original Hafod Junction with SWA (215.18) 0.44 LANDORE LOW LEVEL 1.06 PLAS MARL 1.61 COPPER PIT 2.11 MORRISTON WEST formerly M. 2.46 PENTREFELIN GLAM junction with link to MSV 3.29 Felin Fran West Junction with SDI2 (2.79)