Devil's Quoits

The henge ditch enclosed a circular area up to 120 metres (390 ft) across, with opposed entrances facing almost due east and west. The northern half of the henge appears to have had a second enclosing ditch circuit.

Within the henge was a stone circle and a central stone setting, which may have been put up after the henge had been in use for some time, in the Early Bronze Age. The stone circle had a slightly ovoid plan, with a maximum diameter of 79 metres (259 ft), and followed the same axis as the henge. It originally featured 36 stones, most of which were removed by the end of the Medieval period. The henge is at the centre of a complex of later prehistoric monuments including ring ditches and other possible mortuary enclosures.

The henge survived as a slight earthwork until World War II, when it was levelled in advance of runway construction. Only one stone was standing in situ in 1940, and two others had been re-erected nearby. The site was seriously damaged by the construction of an airfield in 1940, which involved concrete runways and the levelling of a large area, and has been further damaged by gravel extraction since then.

Excavations carried out in advance of gravel extraction in 1972, 1973 and 1988 located a complete plan of the monument. Excavation of the ditch terminals indicated repeated use and deposition, with finds including hearths and animal and human bones.