Ancient Monuments

History on the Ground

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Cefnamwlch Burial Chamber

A Scheduled Monument in Tudweiliog, Gwynedd

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Latitude: 52.8792 / 52°52'45"N

Longitude: -4.632 / 4°37'55"W

OS Eastings: 222980

OS Northings: 334549

OS Grid: SH229345

Mapcode National: GBR 51.QP83

Mapcode Global: WH338.TWGL

Entry Name: Cefnamwlch Burial Chamber

Scheduled Date:

Source: Cadw

Source ID: 2416

Cadw Legacy ID: CN002

Schedule Class: Religious, Ritual and Funerary

Category: Chambered round cairn

Period: Prehistoric

County: Gwynedd

Community: Tudweiliog

Traditional County: Caernarfonshire


The monument consists of the remains of a chambered round cairn, a Neolithic or Bronze Age (c.4,200BC - 800BC) burial monument comprising a stone-built chamber of three upright stones which support a large capstone which, at its extremes measures 3.1m in length and 2.6m width. The underside of the capstone is unusually flat and almost perfectly horizontal c.1.2m above ground level. A further large stone slab lies to the north of the chamber. Any associated surrounding circular or sub-circular stone built mound cannot be discerned at the site which is situated in a grass field which has been ploughed regularly and is generally used for grazing and hay or silage.

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. Chambered round barrows 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 and areas around them within which related evidence may be expected to survive.

Source: Cadw

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