The unique early bronze age mound in the churchyard at Ogbourne St Andrew has suffered from many years of neglect and was very overgrown before a community clearance effort. There is the possibility it sits on an earlier Neolithic structure. Together with professional archaeologists we are currently carrying out a resistivity slice survey on this fascinating multi period site to interrogate its internal structure. Since the mound is a Scheduled Monument, a Section 42 Licence has been granted by Historic England for this survey to be carried out.
Most geophysical techniques are not practicable on this mound, due to to the presence of so many trees. The usually preferred technique, resistivity, also suffers from a severe limitation in insufficient depth penetration, so a linear "slice" technique is being used which will reach at least 4metres into the mound. A series of slices across the mound, avoiding the trees, will enable the construction of a 3D image of the interior and underlying ground.
The first phase of the project to clear many years of undergrowth and fallen trees has been carried out by a small groups of volunteers working to cut the weeds and shrubs. See the photo gallery.
The next phase of the project, evaluating the technique and undertaking a topographical survey of the site, is underway. The resistivity survey will then be carried out in the near future.
Survey dates to be arranged from March onwards -