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Cof Cymru: National Historic Assets of Wales · Wales

Cwmdu Air Shaft & Fan

Cyfarthfa, Merthyr Tydfil, Wales

The record

Designation
Scheduled monument
Site type
Air Shaft
Period
Post Medieval/Modern
Date of designation
26 July 1994
Community
Cyfarthfa
Unitary authority
Merthyr Tydfil
Country
Wales
Coordinates (centre of the scheduled area)
51.73705, -3.40386
SAM number
GM460
Cadw record number
606

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 1588 "Ortelius, Abraham: Theatro De La Tierra Universal. 0" (Bayerische Staatsbibliothek, Munich).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument consists of an air shaft, probably dating to the 18th or 19th century. Cwmdu Air shaft is a small colliery ventilation fan and shaft associated with nearby 19th and 20th century workings. The air shaft consists of a low spoil mound with a narrow circular shaft at its centre, lined in brick and stone with foundations and mountings for the fan engine. The fan box itself is still in place, with a sheet metal inlet tube and box, with small evasee. The axle of the fan carries a strengthening framework and the remains of a number of blades.

The monument is of national importance for its potential to enhance and illustrate our knowledge and understanding of the development of the mining industry in Wales. It retains significant archaeological potential, with the strong possibility of the presence of associated archaeological features and deposits. An air shaft may be part of a larger cluster of industrial monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

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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