Tips
Andy Lewis MTB 🇬🇧
July 14, 2025
Mountain biking
The Cefn-coed Viaduct is the third-largest viaduct in Wales. This huge, curved structure once carried the Brecon and Merthyr Tydfil Junction Railway and is now part of the Taff Trail, which is Route 8 of the National Cycle Network that runs between Cardiff and Brecon. It offers walkers and cyclists a superb view of the Taf Fawr as it cascades over the many weirs in the valley
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Nearby routes
Best routes near Merthyr Viaduct
4.7
(6)
22
riders
26.9km
01:36
280m
280m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
Easy
12
riders
39.3km
02:25
390m
390m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
Moderate
3
riders
14.3km
00:53
190m
190m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
Easy
Details
Informations
Distance 151 m
Uphill 10 m
Downhill 0 m