Suggested location of a Neolithic long barrow, listed by Grinsell as Amesbury 10a. The mound was excavated by Colt Hoare in the early 19th century without result. Ordnance Survey field investigation in 1971 recorded a denuded low oval mound 26 metres in length and a maximum of 30 centimetres high. The mound has since been scheduled as an oval barrow. However, geophysical survey in 1993-4 failed to record any trace of flanking ditches, and nothing has been observed on aerial photographs, although features representing Colt Hoare's trenches appear to have been located. It is therefore suggested that the identification of Amesbury 10a as a barrow is doubtful, and the mound may well be a natural feature.