Stones protrude through the turf here and there, and it is not entirely clear whether they are natural rock outcrops or the buried tops of grave markers. That ambiguity is itself telling. This is a killeen, a term used in Ireland for a burial ground set apart from consecrated church ground, most commonly associated with unbaptised infants or others who, under Catholic practice, could not be interred in the parish cemetery. Such places were often unmarked, informal, and quietly absorbed back into the landscape over generations.

The site appears on the 1842 Ordnance Survey six-inch map as a rectangular area of roughly twenty metres by eight metres, named simply "Killeen Grave Yard" and outlined with a broken line, the cartographic convention for a feature whose boundaries were uncertain or informal even then. By the time the 1904 OS six-inch map was produced, the recorded shape had changed to a subcircular area of around ten metres in diameter, which suggests either that the ground had altered, that vegetation and soil movement had obscured its edges, or that the two surveys were simply reading the same feature differently. What remains on the ground today is a slightly raised subcircular area measuring roughly eight metres east to west and six metres north to south, sitting in ordinary pasture with no formal enclosure or monument to mark it out.