Visited this site again and have found another two barrows in the area surrounding the Hardy monument. One is very low and small and the land owner has circled it with wooden posts , as people used to park on top of it. The other is a much larger round barrow , sadly looking in quite a battered condition. This site is a local viewpoint and gets very busy in the summer , most of the damage done to this barrow is probably done by rabbits , which are abundant on this site , but some of it must be man made.
This cemetery grouping of several round barrows sits on a ridge that runs for many miles and is covered in barrows . A walk along the footpath to the southeast of about 2 miles (Bronkham hill) will take you past about twenty barrows of various sizes. This blackdown is just below the monument to captain Thomas Hardy of Nelson fame and not to be confused with the nearby poor lot cemetery in the winterbourne valley which is also deeply unhelpfully named as blackdown on o.s. maps. There are at least two barrows in the nearby woodland , but I've yet to find them , must try harder.