The Guardian (UK Edition), 6/11/24
Full steam ahead on the Snowdon Mountain Railway – in pictures
Guardian photographer Christopher Thomond bought a ticket for the first coal-fired steam service of the year on the peak known in Welsh as Yr Wyddfa
Engine No 5, Moel Síabod, climbs the approach to Clogwyn station at 779 metres (2,555ft)
Sheep on the line. The gradient of the track of Snowdon Mountain Railway means simple adhesion does not work. Instead a toothed rack between the running rails provides a cog, or pinion, for the locomotive
Snowdon Mountain Railway (snowdonrailway.co.uk)