Upon construction, the barrow would have been about long. The sides would have been straight but the monument tapered in width from at its eastern end to at its western end. It thus formed a "truncated wedge-shape". The earthen tumulus currently stands at about in height, although would have been much taller when first created. Evans described the tumulus as having been "of immense size", believing that the long barrow would have been "a most imposing structure" when built. No evidence has been found of ditches formed by quarrying for the earth to form the mound.