Just north of J4 on the M5 there is a mound with trees on it in a field. It looks rather out of place as though it is man made either a tumulaus (a bit big) or a motte. However it's not marked on the OS map SO966766
http://www.streetmap.co.uk/map.srf?x=396638&y=276614&z=115&sv=396638,276614&st=4&ar=y&mapp=map.srf&searchp=ids.srf&dn=809&ax=396638&ay=276614&lm=0
Anyone seen it or got any ideas?
Malc