Ancient Monuments

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Dyffryn Stone Circle

A Scheduled Monument in Puncheston (Cas-mael), Pembrokeshire (Sir Benfro)

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Latitude: 51.9207 / 51°55'14"N

Longitude: -4.8237 / 4°49'25"W

OS Eastings: 205921

OS Northings: 228452

OS Grid: SN059284

Mapcode National: GBR CS.P06G

Mapcode Global: VH2NC.BZSH

Entry Name: Dyffryn Stone Circle

Scheduled Date:

Source: Cadw

Source ID: 985

Cadw Legacy ID: PE120

Schedule Class: Religious, Ritual and Funerary

Category: Stone circle

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Puncheston (Cas-mael)

Traditional County: Pembrokeshire


The monument comprises the remains of a stone circle and a cairn which probably date to the Bronze Age (c. 2300 - 800 BC) and which are located on the west valley side of the Afon Syfynwy below Bernard’s Well Mountain. The monument comprises an elliptical ring of ten orthostatic and two now prostrate standing stones surrounding a denuded round cairn c. 29m in diameter and 0.5m high. Most of the stones do not exceed 1m in height; the tallest on the eastern side is over 1.5m. Three outlying stones formerly located c 12m to the north east are no longer present.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The features are an important relic of a prehistoric funerary and ritual landscape and retain significant archaeological potential. There is a strong probability of the presence of both intact ritual and burial deposits, together with environmental and structural evidence. Stone circles are often part of a larger cluster of 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.

Source: Cadw

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