Ancient Monuments

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Carn Besi Burial Chamber

A Scheduled Monument in Cilymaenllwyd, Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 51.9171 / 51°55'1"N

Longitude: -4.6823 / 4°40'56"W

OS Eastings: 215626

OS Northings: 227685

OS Grid: SN156276

Mapcode National: GBR CY.PK7Q

Mapcode Global: VH2NM.S2JP

Entry Name: Carn Besi Burial Chamber

Scheduled Date:

Source: Cadw

Source ID: 440

Cadw Legacy ID: CM049

Schedule Class: Religious, Ritual and Funerary

Category: Chambered tomb

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Cilymaenllwyd

Traditional County: Carmarthenshire


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.

The burial chamber is situated in the corner of a field near a boundary fence which separates the field from a bank running alongside the A478. There is one large recumbent stone which measures, 2m in length, 2m wide and has a depth of 0.3m; it is possibly a capstone or slumped orthostat and lies on a small platform c. 0.5m high, with a line of small boulders on either side.

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 retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits 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 and areas around them within which related evidence may be expected to survive.

Source: Cadw

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