A train on the Snowdon Mountain Railway descends the grade.
The Snowdon Mountain Railway (Welsh: Rheilffordd yr Wyddfa) is a narrow gauge rack and pinion mountain railway in Wales. The line is a tourist railway that travels for 7.5 km (5 miles) to the summit of Snowdon, the highest peak in Wales. It is the only public rack railway in the British Isles and after more than a hundred years of service, it remains a highly popular tourist attraction. It is operated by a mixture of steam locomotives, diesel locomotives, and diesel railcars.
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