Ancient Monuments

History on the Ground

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Mynydd Myddfai round cairn

A Scheduled Monument in Llanddeusant, Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 51.9433 / 51°56'35"N

Longitude: -3.7503 / 3°45'1"W

OS Eastings: 279783

OS Northings: 228649

OS Grid: SN797286

Mapcode National: GBR Y6.MNCW

Mapcode Global: VH5F9.YF63

Entry Name: Mynydd Myddfai round cairn

Scheduled Date: 23 September 2004

Source: Cadw

Source ID: 4161

Cadw Legacy ID: CM351

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Llanddeusant

Traditional County: Carmarthenshire


The monument comprises the remains of a round cairn, a burial monument probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated within open moorland on the Mynydd Myddfai ridge. The cairn is circular on plan and measures about 9m in diameter and up to 0.6m in height. There is a central crater, presumably the result of antiquarian investigation.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The monument is well preserved and is an important relic of a prehistoric funerary and ritual landscape. It retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits and environmental and structural evidence. Its importance is further enhanced by the group value formed by its spatial association with similar Bronze Age monuments on the Mynydd Myddfai ridge, including the Mynydd Bach-Trecastell Stone Circles (BR069) situated to the NE and the ring cairn pair situated to the NW (CM349).

The area scheduled 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.

Source: Cadw

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