Where the ground drops away steeply on the eastern and southern sides, the builders of this rath, an early medieval ringfort typically serving as a farmstead enclosure, largely dispensed with a bank altogether; the natural fall of the land did the work for them. Only where the ridge levels out to the north and east, and the site would otherwise be vulnerable, did they pile up a substantial barrier of earth and stone.

The result is an oval enclosure measuring roughly 27 metres along its longer north-east to south-west axis and 15 metres across. The bank where it survives is nearly three and a half metres wide and rises about one and a half metres above the interior. Outside it runs a fosse, a defensive ditch, around four metres wide and equally deep, but this too appears only on the north-east side, exactly where the topography offered no natural substitute. A two-metre break in the bank on the eastern side, fitted with a causeway across the fosse, marks where the original entrance once stood. The whole arrangement sits at the south-western tip of the ridge, a placement that reads less like happenstance and more like careful calculation, using the shape of the hill itself as an extension of the monument's own defences.