 Perkins and Fox-Davies described the line in 1905.The passenger trains ran from Oswestry, southwards over the Cambrian Railways line as far as Llynclys, then turning west on the Cambrian Railways Porthywaen branch, leaving that at Porthywaen passenger station, a very small building, and now entering on the Tanat Valley line itself.The track was of much lighter construction now, consisting of Vignoles pattern (flat-bottom) rails dogged direct to the sleepers.