A History of Britain’s Railways

Brecon and Merthyr Railway

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Brecon Mountain Railway

Brecon and Merthyr Railway
(or Brecon and Merthyr Tydfil Junction Railway)

This railway ran from Brecon to Dowlais near Merthyr. By a series of extensions it reached Merthyr, Rhymney and Newport. Part of the route is now the Brecon Mountain Railway.


Clickable map of the Brecon and Merthyr RailwayHay RailwayDowlais and Merthyr Joint LineExtension to Rumney RailwayLondon and North Western Railway in South WalesNeath and Brecon Railway
Clickable Schematic of route [Key]

Local area


The area around Dowlais had a number of Ironworks including the Dowlais Iron Works, Pen-y-darren Iron Works and the Cyfarthfa Iron Works. A number of lines were promoted to the area to carry



The Pen-y-darren Tramway was the first tramway or railway to reach the area although the a canal had reached Merthyr Tydfil before it. The tramway was replaced by the Taff Vale Railway (one of the first proper railways in South Wales) which ran from Cardiff to Merthyr Tydfil. The Dowlais Iron Company built the Dowlais Railway to connect to the Taff Vale Railway.

Description of route


From Dowlais to Merthyr by following a long curving course..

Page created on 13/11/2000
Page last edited on: 07/08/2011
Contact: Ewan Crawford