Glamorgan Prehistoric Sites

A roughly circular cairn of 51-54 feet in diameter adorns the top of Cefn Gelligaer. A damaged burial cist is in the centre of the cairn.
Deri, Merthyr Tydfil, Glamorgan, Wales

Attraction Type: Prehistoric
Location: 3.5 m NW Deri on minor roads
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OS Grid SO100 036
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A ring cairn composed of 25 stones canted outward at an angle, surrounding a central burial cist.
Rhyd-y-Fro, Glamorgan, Wales

Attraction Type: Prehistoric
Location: 1 m NW Rhyd-y-Fro
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OS Grid SN697 063
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A bit of a mish-mash of small, scattered stones in a rough circle of 30 feet diameter within a low embankment.
Gelli, Glamorgan, Wales

Attraction Type: Prehistoric
Location: off B4223
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OS Grid SS975 942
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A striking chambered tomb of unusual height. The capstone measures 14 feet long x 10 feet wide. The tomb is located close to Tinkinswood.
Caint Lythans Road, St. Nicholas, Barry, Glamorgan, Wales

Attraction Type: Prehistoric
Location: 2 m S St. Nicholas
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OS Grid ST101 723
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One of the best-preserved chambered cairns in Britain, topped by the largest capstone (15 x 24 feet and 40 tons in weight). The cairn is wedge-shaped, though the actual chamber is rectangular. The tomb is fronted by a forecourt of drystone walls. Within the chamber were found bones from at least 40 people buried duing the Neolithic period. It seems likely that the cairn was used for ceremonial purposes right through the Bronze Age.
St. Nicholas, Barry, Glamorgan, Wales

Attraction Type: Prehistoric
Location: 1 m S St. Nicholas
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OS Grid ST092 733
Photo Credit: David Ross and Britain Express
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