What makes this particular site quietly arresting is the sheer scale of the earthwork that survives. A curving bank, still standing 2 metres high and 10 metres wide, sweeps across 100 metres of the headland's northern edge before diminishing into a scarp and then resolving into a low stone wall. Outside it, a 4-metre-wide fosse, the ditch that would originally have sharpened the defensive profile of the bank, is still traceable beneath later cultivation ridges and a modern field boundary.

The headland itself measures 190 metres wide by 85 metres long, and the interior is far from featureless. The ground undulates, and within it survives a faint raised platform, a small knoll that may be artificial in origin, and the remains of a single circular hut site roughly 8 metres in diameter. A short internal earthen bank suggests the enclosed space was subdivided at some point, perhaps reflecting different phases of use or different functions within the enclosure. The natural setting reinforces the sense of a carefully chosen position: low cliffs fall away to the north and west, a gully defines the southern edge, a freshwater stream runs through the southern part of the site, and sea rocks break the surface 200 metres to the west. Higher ground to the north and east would have overlooked any occupants, which complicates any straightforward reading of the site as purely defensive. Just south of the gully, the second edition of the Ordnance Survey map records a location as 'Doon, (site of)', though only vague surface undulations now remain there. Doon, an anglicisation of the Irish word for fort, suggests a local memory of something substantial, even if the physical trace has largely gone. The site was surveyed as part of Markus Casey's 1999 thesis on the coastal promontory forts of counties Sligo, Mayo, Galway and Clare, which remains one of the more systematic attempts to document this particular class of monument along Ireland's western seaboard.