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Cof Cymru: National Historic Assets of Wales · Wales

Pen Bwlych Glascwm Pillow Mounds

Llangynidr, Powys, Wales

A scheduled monument in Llangynidr, Powys, recorded as Pillow Mound (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pen Bwlych Glascwm Pillow Mounds, Llangynidr, Powys, 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
Pillow Mound
Period
Medieval
Date of designation
9 December 1998
Community
Llangynidr
Unitary authority
Powys
Country
Wales
Coordinates (centre of the scheduled area)
51.83844, -3.31823
SAM number
BR252
Cadw record number
1562

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)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)
  • 1963 · Map No. 11 - Local Government Commission for Wales : [Definitive maps showing proposed… (National Library of Scotland)

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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 the remains of a group of 15 pillow mound, a pillow-shaped, flat topped rectangular mound often surrounded by a shallow ditch used to farm rabbits. The mounds have been constructed on a steep hillside on Pen Bwlch Glasgwm. They are rectangular in shape with varying dimensions, the smallest being about 2.5m by 4m and the largest about 3m by 6m. They average approximately 0.6m in height.

The monument is of national importance for its potential to enhance our knowledge of agricultural techniques. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits.

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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