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Cof Cymru: National Historic Assets of Wales · Wales

NW Ventilation shaft to Morlais Tunnel

Cyfarthfa, Merthyr Tydfil, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
11 March 2003
Locality
Pant
Community
Cyfarthfa
Unitary authority
Merthyr Tydfil
Country
Wales
Coordinates
51.74898, -3.42409
Cadw reference
80960

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

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Situated just SE of the Brecon Mountain Railway station at Pant.

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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