The henge consists of a large, circular earthwork, which is currently about 1 metre (3 ft) high and 9–11 metres (30–36 ft) wide; however it was originally 2 metres (7 ft) high and 5.5–7 metres (18–23 ft) wide. The henge has a ditch on the inside, which varies between 0.5 and 1 metre (1 ft 8 in and 3 ft 3 in) deep and 8 and 12 metres (26 and 39 ft) wide; it was originally 1.2–2 metres (3 ft 10 in–6 ft 7 in) deep and 5–6.5 metres (16–21.3 ft) wide. The ditch and bank are separated by a berm, which was originally 5 metres (16 ft) wide. It encloses an area 53 (N–S) by 46 (E–W) metres, with entrances to the north and south, each of which have a causeway across the ditch. A skeleton was reputedly found near the north entrance; this entrance was also damaged in the 19th century by quarrying. The centre of the henge was ploughed in the 18th century; a drystone wall was also built across the site during the same era.
