Ancient Monuments

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Tomen y Rhos round cairn

A Scheduled Monument in Myddfai, Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 51.9543 / 51°57'15"N

Longitude: -3.7353 / 3°44'6"W

OS Eastings: 280849

OS Northings: 229848

OS Grid: SN808298

Mapcode National: GBR Y7.M03K

Mapcode Global: VH5FB.64NN

Entry Name: Tomen y Rhos round cairn

Scheduled Date: 23 September 2004

Source: Cadw

Source ID: 4154

Cadw Legacy ID: CM347

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Myddfai

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 15.5m in diameter and now standing up to 1.2m in height. There is a large central crater, presumably the result of antiquarian investigation - the spoil of which has added to the overall height of the cairn. There is a record of an excavation in 1825, in which two Middle Bronze Age collared urns were recovered.

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 SW (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 30m in diameter.

Source: Cadw

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