Walk the ground today and you will find no obvious earthwork, no bank, no ditch. Yet the site has a habit of surfacing and retreating depending on season, angle, and how the grass happens to be growing over what lies beneath. When aerial photography was taken in March 2017, the outline reappeared as a cropmark, a ghostly ring pressed into the turf by differential soil conditions. By June the following year, it had vanished again into the ordinary-looking field.

The enclosure measures roughly 34 metres in diameter and is classed as a possible ringfort, the term used for the circular enclosed farmsteads, typically of early medieval date, that are among the most common monument types in Ireland. What sets this one apart is the description recorded by O'Dwyer in 1960, before the land was fully reclaimed and the features more thoroughly buried. At that time, the site presented as a raised platform about 22 metres across, with a depressed centre and a steep western edge standing some 2.7 metres above the surrounding field level. A wide, shallow ditch ran around the outside except on the eastern side, where it had already become invisible. When the Archaeological Survey of Ireland visited in 2007, no surface remains were visible at all, though orthophotos taken between 2005 and 2012 still resolved the circular form, along with traces of linear features to the east, south, and north-west that may represent the remains of an associated field system. The site does not appear on Ordnance Survey Ireland maps. Clustered close by are a possible ringfort some 75 metres to the south-east and a possible burial mound only 15 metres to the south, suggesting this corner of the hill was once considerably more occupied than it appears.

For anyone inclined to look, the site lies in reclaimed pasture on the north-western face of Derk Hill. There are no markers, no interpretive panels, and the absence of any depiction on standard OSi maps means careful cross-referencing with satellite imagery is worthwhile before visiting. The cropmark geometry is most legible in aerial views taken during dry spells in late spring, when moisture stress reveals buried features through the grass above them. On the ground, the best approach is simply to observe the lie of the land carefully, particularly on the western side where the original platform edge was most pronounced.