route on 22 February 1965, two Hymek diesels providing the motive power. The line remained open for freight using Hymek locomotives until around 1970, then by Class 37 locomotives. The freight traffic that kept the remainder of the line open was dominated mainly by milk traffic between Carmarthen and Lampeter where traffic was routed to both the last remaining part of the main line to Aberystwyth as far as the milk creamery at Pont Llanio (near Llanddewi-Brefi which survived until 1970, plus the Aberaeron branch as far as the milk creamery at Green Grove near Felin Fach which continued in service until discontinued by British Rail in 1973. This resulted in the final closure of the line. Track was left in place until the summer of 1975. Gwili Railway Preservation Company Following the line's closure, the Gwili Railway Preservation Company was formed with the ambition to preserve at least of track of the former route, from Abergwili Junction right up the Gwili Valley to the station site at Llanpumpsaint. Track lifting had already started at the time of the formation of the new Company and, as a result, only of track north of Bronwydd Arms was left in situ, the Company being able to acquire the full 8-mile stretch of trackbed from Abergwili Junction to Llanpumsaint for both rebuilding and preserving. Over time, the Railway has extended the operational length from one-mile to over , as well as reconstructing original features at Bronwydd Arms station and amassing a collection of locomotives and rolling stock. The Gwili Railway was set up in 1975, and within three years the railway had purchased 8miles of track (between the sites of Abergwili Junction and Llanpumpsint railway station) and was running an initial steam-hauled service on a one-mile} section. In April 1978, it re-opened the one-mile section of the Carmarthen-Aberystwyth route from its base at Bronwydd Arms, ( north of Carmarthen), making it the first standard-gauge heritage railway to operate in Wales. The railway had been working south towards Carmarthen to a new station site named "Abergwili Junction" built on the northern outskirts of Carmarthen, at the site of the old and former Abergwili junction. Route Trains on the Gwili start from Bronwydd Arms where the replica GWR station is dominated by a Signal Box saved from Llandybie railway station on the Heart of Wales Line. The Signal box, which is open to the public,