Ancient Monuments

History on the Ground

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Mynydd Bach-Trecastell Round Cairn

A Scheduled Monument in Myddfai, Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 51.9651 / 51°57'54"N

Longitude: -3.7022 / 3°42'8"W

OS Eastings: 283146

OS Northings: 230988

OS Grid: SN831309

Mapcode National: GBR Y8.L8BW

Mapcode Global: VH5F4.SV4Z

Entry Name: Mynydd Bach-Trecastell Round Cairn

Scheduled Date:

Source: Cadw

Source ID: 1774

Cadw Legacy ID: BR142

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Myddfai

Traditional County: Brecknockshire


The monument comprises the remains of a burial cairn, probably dating to the Bronze Age (c. 2300 - 800 BC). It is circular in plan, 8m in diameter and 1.2m high and is turf-covered. There is a slight hollow in the centre of the cairn, the result of a past disturbance, possibly an early 19th century excavation. The cairn lies 120m WSW of Mynydd Bach Trecastle Stone circles (BR069).

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. 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, together with environmental and structural evidence. Cairns 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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