Ancient Monuments

History on the Ground

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Two Round Barrows 300m North of Tair Onnen

A Scheduled Monument in Welsh St. Donats (Llanddunwyd), Vale of Glamorgan (Bro Morgannwg)

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Latitude: 51.4651 / 51°27'54"N

Longitude: -3.3807 / 3°22'50"W

OS Eastings: 304182

OS Northings: 174914

OS Grid: ST041749

Mapcode National: GBR HN.LY26

Mapcode Global: VH6F9.CF3Q

Entry Name: Two Round Barrows 300m North of Tair Onnen

Scheduled Date:

Source: Cadw

Source ID: 3117

Cadw Legacy ID: GM390

Schedule Class: Religious, Ritual and Funerary

Category: Round barrow

Period: Prehistoric

County: Vale of Glamorgan (Bro Morgannwg)

Community: Welsh St. Donats (Llanddunwyd)

Traditional County: Glamorgan


The monument comprises the remains of two earthen built round barrows, which probably date to the Bronze Age (c. 2300 - 800 BC).

Barrow A - This is a low mound measuring c. 0.7m high by 30m in diameter.

Barrow B - This is a low indeterminate mound c. 0.30m high on the eastern edge of the field.

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. 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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