Pantyffynnon railway station is a railway station serving the village of Pantyffynnon, in Carmarthenshire, Wales. It is situated on the Heart of Wales Line at its junction with the branch lines to Brynamman and Abernant. History The station was originally fairly large and built adjacent to the Dynevor tinplate works and included station buildings, signal box, freight yard and from 1931 a small railway locomotive shed. The signal box (formerly one of three at the station and dating from 1892) is the only surviving example on the HoW route and since 1986, it has supervised the entire line north of here to using a system of working known as No Signalman Token Remote (NSTR). It is also a 'fringe box' for the power box at , which controls the line south from here towards and supervises access to the freight branch to Gwaun-cae-Gurwen (which is worked under 'One Train Working' regulations). The Llanelly Railway first reached the village as long ago as 1839, continuing eastwards to Garnant following within a year and the main line being extended to Duffryn (the current Ammanford) in May 1841. The station on the current site was first built at this time, although it has undergone several significant alterations since then. Brynamman would be reached (under GWR auspices) in 1886, some 45 years after the opening of the mineral line from Garnant to Gwaun-cae-Gurwen, whilst the network of routes reached from Pantyffynnon would be completed in 1922 with the opening of the short branch to the colliery at Abernant. This was planned to be a through route to connect the coalfield with the Swansea District Line but was never completed. Neither it nor the GcG branch was ever used by passenger services, even though a number of stations were built on both lines. The old Brynamman branch closed to passengers in August 1958 (complete closure following five years later) and the old branch platform has been disused since then (the GcG branch line remains in use for freight traffic - see below). The former northbound platform is also derelict - this was abandoned in March 1966 after the closure of the former North signal box (traffic henceforth using the former southbound line & platform in both directions). The station's Grade II listed historic waiting room was restored by Network Rail with support from Carmarthenshire's Built Heritage Team and a significant grant funding from the Railway