Like so many, the apparent bowl barrow on Wolstonbury has been raided and flattened by the plough. It lies on farm land just to the east of the main track that leads to the hill from the south, at the kink in the 'cross ridge dyke'.
While it seems to be sited across the northern bank of the linear ditch and so appears later than the dyke itself, this may be a false impression. The barrow has been so badly disrupted (presumably by an unrecorded antiquarian investigation) that it is possible that excavated soil has been thrown over the linear earthwork.
It is also possible that the round mound could represent the mutilated remains of a later fire beacon mound. (But let's keep that quiet until someone proves it, eh?)