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Cof Cymru: National Historic Assets of Wales · Wales

SE Ventilation Shaft to Morlais Tunnel

Pant, Merthyr Tydfil, Wales

A Grade II listed building in Pant, Merthyr Tydfil, designated on 11 March 2003.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of SE Ventilation Shaft to Morlais Tunnel, Pant, Merthyr Tydfil, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
11 March 2003
Locality
Pant
Community
Pant
Unitary authority
Merthyr Tydfil
Country
Wales
Coordinates
51.77487, -3.36143
Cadw reference
80962

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1636 map "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1856 · 42. Brecon. (David Rumsey Map Collection, Stanford Libraries)
  • 1895 · Sheet 11. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 231 Merthyr Tydfil (Hills) (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Situated in a field some 50m N of Pant-Cad-Ivor Inn.

Later C19 large ventilation shaft, one of 3 to Morlais or Miler tunnel of 1879 on the London and North Western Railway. This railway, one of several in the Merthyr area, came from Abergavenny went through the tunnel to Pontsarn, Cefn Coed and eventually to Merthyr using the joint line with the Brecon and Merthyr Railway.

Ventilation shaft to railway tunnel, circular, red brick with battered sides and raised brick square labels under brick top band, itself under sandstone coping carrying shallow-domed iron protective grille. Bricks are laid in alternate courses of headers and stretchers.

Included as one of an exceptional group of distinctive railway structures from the industrial history of the area.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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