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Cof Cymru: National Historic Assets of Wales · Wales

Glyn, Burial Chamber 450m N of

Llanfair-Mathafarn-Eithaf, Isle of Anglesey, Wales

The record

Designation
Scheduled monument
Site type
Burial Chamber
Period
Prehistoric
Date of designation
21 August 2006
Community
Llanfair-Mathafarn-Eithaf
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates (centre of the scheduled area)
53.31157, -4.23170
SAM number
AN154
Cadw record number
1188

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 1883 "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Monument.

The monument comprises the remains of a burial chamber, probably dating to the Neolithic (c. 4,400 - 2,900 BC). It is located in an enclosed field of pasture on a gentle SE-facing slope at the edge of a limestone terrace. The construction is unusual as the capstone appears to have been levered from the bedrock and propped up by low stones at its outer edge. The capstone has broken into three pieces and rests above a partially collapsed chamber. The capstone measures c. 4.6m long, up to 2.8m wide and 0.8m thick. It is aligned E-W. The central section stands to a height of 1.4m. A slight rise in the ground around the burial chamber represents the remains of the covering mound. It is circular and measures c. 14m in diameter. Part of the chamber was excavated in 1909.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The burial chamber is an important relic of a prehistoric funerary and ritual landscape. It retains significant archaeological potential and there is a strong probability of the presence of burial, ritual or structural evidence. The monument's importance is further enhanced by its unusual construction and its proximity to Benllech Megalith (SAM number AN094), which is located c. 850m NW.

The scheduled area comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 25m in diameter.

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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