Ancient Monuments

History on the Ground

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Pen Bwlych Glascwm Pillow Mounds

A Scheduled Monument in Talybont-on-Usk (Tal-y-bont ar Wysg), Powys

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Latitude: 51.8385 / 51°50'18"N

Longitude: -3.3185 / 3°19'6"W

OS Eastings: 309256

OS Northings: 216370

OS Grid: SO092163

Mapcode National: GBR YS.V7J8

Mapcode Global: VH6CL.F1JX

Entry Name: Pen Bwlych Glascwm Pillow Mounds

Scheduled Date: 9 December 1998

Source: Cadw

Source ID: 1562

Cadw Legacy ID: BR252

Schedule Class: Agriculture and Subsistence

Category: Pillow mound

Period: Medieval

County: Powys

Community: Talybont-on-Usk (Tal-y-bont ar Wysg)

Traditional County: Brecknockshire


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.

Source: Cadw

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