Trevithick Tunnel

Discover Trevithick Tunnel

On the 21st February 1804, Merthyr witnessed the first ever steam locomotive journey, as Richard Trevithick’s ‘Pendydarren Locomotive’ travelled down through Pentrebach and on to Abercynon.

Trevithick is largely overlooked as the creator of the World’s first steam locomotive but the site in Merthyr Tydfil is now part of a nine-mile heritage trail which passes through diverse habitats and is ideal for walking, cycling, wheelchairs or horse riding.


Trevithick Trail Viewing Platform (Merthyr Vale)

This integrated viewing platform, pennant stone seating area, stone plinth and a bronze plaque information panel is sited along the Trevithick Trail at Merthyr Vale. The seating area offers panoramic views across Aberfan, the lower valley to the north and the Brecon Beacons.


  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel
  • Trevithick Tunnel

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Official Visitor Guide 2022

Visitors Guide - it's ready!

We’ve got everything from world class adventures to breath-taking landscapes waiting to be discovered.  

Pick it up locally or download from this website.

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The Visit Merthyr Location Finder put together by County Borough Council…

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