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Cof Cymru: National Historic Assets of Wales · Wales

Carreg Samson Burial Chamber

Mathry, Pembrokeshire, Wales

The record

Designation
Scheduled monument
Site type
Chambered Tomb
Period
Prehistoric
Community
Mathry
Unitary authority
Pembrokeshire
Country
Wales
Coordinates (centre of the scheduled area)
51.95831, -5.13298
SAM number
PE036
Cadw record number
3335

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 1608 "(13) Cambriae Typus." (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 Ancient Monument.

The monument comprises the remains of a chambered tomb, dating to the Neolithic period (c. 4,400 BC - 2,900 BC). Chambered tombs were built and used by local farming communities over long periods of time. There appear to be many regional traditions and variations in shape and construction.

Carreg Samson stands on gently sloping land at the head of a narrow creek running down to the sheltered inlet which is set the harbour of Abercastle. It has a particularly impressive appearance as the chamber is composed of six remaining large pointed uprights, three of which support the massive capstone which is 4.75m in length and varies in thickness from 0.75 to 1.5m. The burial chamber is oval in plan and measures, 3.4m in length and 1.7m wide, the capstone rises towards its eastern giving an internal height of the chamber of between 2 and 3m. Excavations in 1968 suggested that on the northwest of the chamber there had been at least one and possibly two further stones which formed either side of a passage that led from the perimeter of the cairn to the chamber. The whole of the chamber has been constructed in a pit, 8m by 5m and at least 0.8m deep. The excavations at the site revealed that the burial rite practised at the tomb had been cremation.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual. The monument is an important relic of a prehistoric funerary and ritual landscape and environmental and structural evidence, including a buried prehistoric land surface. Chambered tombs may be part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described.

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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