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Cof Cymru: National Historic Assets of Wales · Wales

Cwmbyrgwm Colliery

Abersychan, Torfaen, Wales

A scheduled monument in Abersychan, Torfaen, recorded as Coal Mine (Post Medieval/Modern).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Cwmbyrgwm Colliery, Abersychan, Torfaen, 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
Scheduled monument
Site type
Coal Mine
Period
Post Medieval/Modern
Community
Abersychan
Unitary authority
Torfaen
Country
Wales
Coordinates (centre of the scheduled area)
51.72363, -3.08634
SAM number
MM163
Cadw record number
2396

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

Historical maps covering this location

  • 1588 · Ortelius, Abraham: Theatro De La Tierra Universal. 0 (Bayerische Staatsbibliothek, Munich)
  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 232 Abergavenny (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 232 Abergavenny (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1913 · Sheet 102. Newport. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

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 a coal and iron mine, dating to the early 19th century and was in operation until the early 20th century. Mining began at the location before 1820, and expanded to feed the adjacent British Ironworks after 1827. The remains include waterbalance gear, a brick chimney, watercourses, two reservoir dams, levels, three oval shafts and tramroad incline.

The monument is of national importance for its potential to enhance and illustrate our knowledge and understanding of the development of the coalmining industry in Wales. It retains significant archaeological potential, with the strong possibility of the presence of associated archaeological features and deposits. A caol mine 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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