The route
The railway “crosses more than seven miles of spectacular scenery” from Tywyn to Nant Gwernol, by way of Abergynolwyn (about the Talyllyn), on the unusual track gauge of 2 feet 3 inches (locomotives page). Tywyn’s main-line station is a short 5 minute walk away (things to do).
The first preserved railway
The line was incorporated by an Act of Parliament in 1865, and after Sir Haydn's death in 1950 a group of enthusiasts led by the engineer and author Tom Rolt called a public meeting to save it (history). The railway’s own words: “The Talyllyn Railway is the first preserved railway in the World” (about). A film, Railway with a Heart of Gold, was made there in the early 1950s.
Dolgoch, the engines and the Awdry link
Dolgoch viaduct is listed Grade II, with the track 15.4 metres above the water (list entry). No. 1, Talyllyn, was “originally built in 1864 by Fletcher, Jennings & Co. of Whitehaven” (No. 1 Talyllyn). The railway's Awdry connection page tells how the Rev. W. Awdry “discovered” a narrow-gauge railway on the Island of Sodor called the Skarloey Railway (the Awdry connection). The Narrow Gauge Railway Museum is at Tywyn Wharf, and admission is free (museum page).
The engines, and the extension
No. 2, Dolgoch, was built in 1866, also by Fletcher, Jennings (No. 2 Dolgoch), while No. 7, Tom Rolt, was built at the railway’s own Pendre Works and entered service in 1991 (No. 7 Tom Rolt). In preservation the line was extended beyond Abergynolwyn towards the disused quarry, to Nant Gwernol (history). Parking at Wharf is £1 for 4 hours, and most passenger trains have a wheelchair accessible carriage (accessibility page).
Haydn Jones, Tom Rolt and the first rescue
Henry Haydn Jones became MP for Merioneth in 1910 and reopened the slate quarry in January 1911. He never had money to put into it, but he promised to keep the railway running as long as he lived. He did, on a shoestring, even after the quarry closed.
He died on 2 July 1950, and the trains ran to the end of the season on 6 October. That summer Tom Rolt had written to the Birmingham Post suggesting a rescue. Around 70 people came to the meeting, and a committee with Rolt as chairman and Patrick Whitehouse as secretary first met on 23 October. The rescue inspired the Ealing comedy The Titfield Thunderbolt, and Hugh Griffith, who played Dan in the film, was one of the society’s early vice-presidents (Wikipedia).
Planning the day
An Adult Explorer ticket was listed at £26.30, or £29 with a donation (timetable and fares), and dogs travel in third class carriages for £5.00 (dogs page).
Photographing the line
The Talyllyn runs photo charters: one, Wagons on the P/Way, is an evening shoot at Brynglas for £60, limited to 25 people. The 75th anniversary gala on 15 to 17 May was the big weekend of 2026. And if you stop at Dolgoch for the falls, the paths are free but steep, with a lot of steps beyond the lower falls.
Sources: Talyllyn photo charter; anniversary gala; Dolgoch Falls (checked 21 October 2026).
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