Roughly D-shaped, measuring about four and a half metres by two, and raised only some forty centimetres above the surrounding ground, it would be easy to step over without a second thought. But the 1840 Ordnance Survey six-inch map marks this spot, or somewhere very close to it, as a burial ground for children, and that detail changes how you stand in the place.

The ringfort itself, known in Irish as a rath, is the kind of early medieval enclosure that dots the Irish countryside in the thousands, typically dating from somewhere between the sixth and tenth centuries. They served as defended farmsteads, the earthen bank and external fosse, or ditch, forming a boundary around a household and its outbuildings. This one sits in low-lying pasture at Cappanihane, its roughly circular interior measuring about 26 metres north to south and 29 metres east to west. The bank survives to a height of around 1.2 metres on the outside, with a shallow fosse still just about legible at 0.3 metres deep. The western entrance, about 1.7 metres wide, retains some dry-stone walling on its southern side, a detail that suggests a degree of construction care beyond a simple gap in the bank. The record was compiled by Denis Power and uploaded to the Archaeological Survey of Ireland database in August 2011.

Field fences now abut the bank to the east and north-west, which means the monument has been absorbed into working agricultural land rather than set apart from it. That kind of integration can make these sites harder to read on the ground. The fosse is shallow enough to cross without noticing, and the bank, though overgrown, is still coherent enough to define the interior clearly. The D-shaped feature near the entrance is what warrants the closest attention; it is slight, easy to dismiss as a trick of the pasture, but the Ordnance Survey cartographers of 1840 thought it worth recording. Cillíní, informal burial grounds for unbaptised children, were frequently placed at the margins of older or liminal spaces, and the possibility that this is one adds a layer of social and religious history to what might otherwise read as a straightforward earthwork.