Ancient Monuments

History on the Ground

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St-y-Nyll Round Barrow

A Scheduled Monument in St. Georges-super-Ely (Sain Siorys), Vale of Glamorgan (Bro Morgannwg)

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Latitude: 51.4964 / 51°29'47"N

Longitude: -3.2967 / 3°17'48"W

OS Eastings: 310079

OS Northings: 178295

OS Grid: ST100782

Mapcode National: GBR HS.JTQZ

Mapcode Global: VH6F4.TN06

Entry Name: St-y-Nyll Round Barrow

Scheduled Date:

Source: Cadw

Source ID: 321

Cadw Legacy ID: GM204

Schedule Class: Religious, Ritual and Funerary

Category: Round barrow

Period: Prehistoric

County: Vale of Glamorgan (Bro Morgannwg)

Community: St. Georges-super-Ely (Sain Siorys)

Traditional County: Glamorgan


The monument comprises the remains of a earthen built round barrow, which probably date to the Bronze Age (c. 2300 - 800 BC). It is situated on a gently sloping hill on east-facing ground. The barrow measures 16m in diameter by c. 1m high. It has been excavated in 1872 when human remains were found, and again in 1958 by H. Savory. This latter excavation discovered that the barrow was originally of stones c. 9-10m in diameter surrounded by a flat bottomed ditch c. 2.1m deep. In the centre was a post hole, under which was a shallow pit capped by a sandstone slab and a small cairn of stones, containing the cremated remains of an adult female and a child. Below the central part of the mound were post holes of three oval huts. Bones of sheep, ox and wild boar were found, together with flints and fragments of early Bronze Age pottery.

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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