That the builders of this promontory fort chose such a point is logical enough; what stays with you is how modest the whole arrangement is, and how thoroughly the landscape has absorbed it. The crescent-shaped headland, facing south, measures only 33 metres in length and 21 metres at its widest, yet it was once carefully engineered into a defensible enclosure using a single earthen bank and ditch, the classic anatomy of a promontory fort, in which natural cliff edges do much of the defensive work and an artificial barrier seals off the landward approach.

The earthwork here is still legible on the ground. The bank averages 8 metres wide and rises 2 metres above the level of the interior, its top worn flat, with some material apparently removed in recent times. Outside it runs a flat-bottomed ditch, 6 metres across and 1.5 metres deep measured from the top of the bank. The steep rise of the ground beyond the ditch blurs its outer edge, making the full profile harder to read from outside than from within. A causeway near the western edge crosses both bank and ditch, the original entrance point, and a faint rise in the centre of the ditch may mark an earlier or secondary crossing. The interior offers nothing more to see; it is featureless, tapering to that narrow point at the southern end. The fort sits immediately east of Dooghkeeghan Castle, in country characterised by mountainous bogland, rough pasture, and cliff edges, and although the view across Broadhaven is wide and clear, higher ground to the north means the site itself could be observed from above, a reminder that commanding a seaward view and controlling the surrounding landmass are two quite different things.