The structure here is roughly oval, measuring about 26 metres east to west and just under 20 metres north to south, and what survives of its enclosing wall has been reduced to a spread of grass-covered stone, nowhere rising more than half a metre from the ground. A few stretches of outer facing remain visible along the western and southern sides, but only just. The whole thing sits quietly within a working field system on rough pasture, easy to overlook.

The cashel occupies a position that would once have made good practical sense, sitting at the mouth of a short, narrow valley no wider than 30 to 40 metres, defined by low outcropping bluffs on either side. Whoever built and used this enclosure could monitor movement through that corridor from a position of mild elevation. The valley itself meanders, its bluffs rising only two to three metres, so the landscape is not dramatic, but the choice of location reflects the careful, unhurried logic typical of early medieval settlement in the west of Ireland. What complicates the picture today is the townland boundary wall between Cullaun and Ballyconnoe, which cuts directly across the western side of the cashel. This later boundary has obscured part of the original structure, and earlier walls, probably associated with the cashel, can be traced extending outward beneath it at the northwest, southwest, and northeast. These ghost walls suggest the site was once part of a more complex arrangement of enclosures and field divisions than the surface alone would indicate. Adding to that complexity, a second enclosure sits on top of a bluff roughly 100 metres to the south, looking down over the cashel from its rocky vantage point, the two sites forming a loose pairing across the valley mouth.