It is not large, measuring roughly 29 metres north to south and 23.5 metres east to west, and the fosse encircling it, a fosse being a defensive or boundary ditch dug around an earthwork, drops only about half a metre in depth. What gives the site an unusual quality is the geometry of that surrounding ditch: its eastern and western sides run in nearly straight lines, while the northern and southern sides curve, producing a shape that does not quite match the regular circular plan of a typical ringfort, nor the squared-off outline of a later enclosure.

Adding to the puzzle is a T-shaped depression situated approximately ten metres to the south of the main mound. It extends around 35 metres east to west and 12 metres north to south, and its relationship to the mound itself is not straightforwardly explained. Depressions of this kind can sometimes represent the remains of field boundaries, drainage features, or the collapsed remnants of earlier structures, but without excavation the function here remains genuinely open. The irregularity of the fosse outline and the presence of that secondary feature suggest the site may have had a more complex history than a single period of use would account for.