On one day this year 2000 people were allowed to walk along the railway tracks of the Ribble Viaduct
Ribblehead Viaduct is a railway viaduct across the valley of the River Ribble in North Yorkshire, northern England.
It is the longest (but not the tallest – Smardale viaduct near Crosby Garrett at 131 ft and Arten Gill at 117 ft are higher) and most famous viaduct on the Settle-Carlisle Railway, a railway line passing through some spectacular British scenery. Ribblehead railway station is located just to the south of the viaduct.
Designed by the engineer John Sydney Crossley. The first stone was laid on 12 October 1870 and the last in 1874. It is 104 feet (32 m) high and spans 440 yards (402 m). It is made up of 24 arches. It is located at the foot of the mountain of Whernside.
The viaduct is curved, and so may be seen by passengers on the train. The train journey from Settle to Carlisle is short enough to allow the Yorkshire Dales holidaymaker to make a return day trip (steam-hauled, in the tourist season) including a few hours in the border town of Carlisle.