The site, known locally as Castle Field, occupies a roughly circular area of elevated ground that stretches about 85 metres from north to south. The outcrop commands impressive views over the river valley below, with the southern edge dropping away sharply to the water; a strategic position that would have made it an ideal defensive location for a medieval fortification.

Though no structural remains are visible today, the landscape itself tells an intriguing story. The rocky prominence slopes gradually from south to north, and evidence of past quarrying activity can be seen along the southern edge where the exposed rock face has been worked. The absence of masonry or foundations might suggest the stone was robbed out over centuries for local building projects, a common fate for abandoned castles across Ireland. The field’s enduring name, however, preserves the memory of what once stood here.

Historical evidence supports the local folklore; the Down Survey map, compiled in the 1650s following the Cromwellian conquest of Ireland, marks a castle in this area between Nicholastown and Ballyoskill. This documentary record, combined with the site’s commanding position and persistent oral tradition, makes a compelling case that this rocky outcrop once supported a defensive structure, even if time and human activity have erased its physical traces from the landscape.