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Cefn-coed Viaduct – Merthyr Ironworks Ruins loop from Merthyr Tydfil

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Hiking trails & Routes

Cefn-coed Viaduct – Merthyr Ironworks Ruins loop from Merthyr Tydfil

Easy

4.3

(3)

hikers

Cefn-coed Viaduct – Merthyr Ironworks Ruins loop from Merthyr Tydfil

01:38

6.13km

60m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 20, 2026

Waypoints

Start point

Bus stop

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1.77 km

Cefn-coed Viaduct

Highlight • Monument

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, …

Tip by

4.71 km

Merthyr Ironworks Ruins

Highlight • Historical Site

Not much left of the old iron works. With a bit of time, experience and phantasy you can roughly reconstruct the old site, but without knowing the history you could as well overlook these ruins.

Tip by

6.13 km

End point

Bus stop

Way Types & Surfaces

Way Types

4.39 km

725 m

540 m

349 m

128 m

Surfaces

3.59 km

1.29 km

1.11 km

145 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Sunday 31 May

16°C

11°C

89 %

Additional weather tips

Max wind speed: 18.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Cefn-coed Viaduct – Merthyr Ironworks Ruins loop from Merthyr Tydfil

Cefn-coed Viaduct

Merthyr Ironworks Ruins

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