No grave markers, no visible burials, no clear arrangement in the soil that would settle the question. What survives instead is a gentle, ambiguous rise in the ground, a grassed-over depression at its southern end, and a deep quarry pit cut into its western edge, and the memory of what people believed this place once held.

The site entered the official record as an enclosure, a classification based on a single piece of cartographic evidence: a shallow arc of hachuring, indicating a curved earthwork roughly thirty metres across, that appeared on the 1919 Ordnance Survey six-inch map but was absent from the earlier 1837 edition. Hachuring on these maps represents a slight bank or slope, and the arc curves from northwest to northeast, suggesting it may trace the northern portion of a circular or oval enclosure. Whether that enclosure ever existed as a substantial structure, or was already reduced to near-nothing by the early twentieth century, is unclear. The slight rise in the ground measures roughly twenty-six metres north to south and twenty metres east to west, with a broad, low slope along its northern and southeastern sides that seems to be entirely natural rather than constructed. On those measurements alone, it is a modest feature, easy to walk past without registering it as anything other than uneven pasture.

The tradition of children's burial grounds in Ireland connects to the practice of burying unbaptised infants, who were excluded from consecrated ground under Catholic Church teaching, in liminal places, field boundaries, old earthworks, or undisturbed corners of land. Such places, known in Irish as cillíní, are found across the country in considerable numbers. Whether this knoll in Cloonaghboy served that purpose, or whether the association grew up around a landscape feature that simply looked, to local eyes, like it might hold something, is a question the ground has not yet answered. A separate enclosure sits about eighty metres to the northeast, a reminder that this stretch of Mayo has been shaped and marked by people across a long span of time.