That inaccessibility is, in a way, fitting. This is a killeen, or cillíneach, a type of informal burial ground used historically for unbaptised infants, and sometimes for others considered ineligible for consecrated ground. The word cillíneach derives from the Irish "cill", meaning a small church or monastic cell, though these sites were typically unconsecrated and existed well outside the formal structures of the Church. They are found across Ireland, usually on marginal land, and carry a quiet weight in local memory that official records only partially reflect.

The site at Maunvough measures roughly 30 metres along its north-east to south-west axis, with a further projection of about 30 metres to the north-west, and rises no more than 0.3 metres above the surrounding ground. A rough arrangement of grass-covered stones is visible mainly along the northern and north-eastern sides, suggesting some attempt at demarcation, though the overall form is irregular rather than formally enclosed. What makes the location additionally curious is the presence of a standing stone immediately outside its south-western corner, with evidence that a second standing stone formerly stood about 4 metres to the west of that. Whether the killeen was deliberately positioned in relation to these pre-existing markers, or whether the proximity is coincidental, is not recorded, but the clustering of different kinds of significant ground in one spot is a pattern that appears elsewhere in the Irish landscape.

The site sits in working pasture and the interior remains inaccessible, so there is little to see beyond the overgrown perimeter and the stones along its edges. The standing stone at the south-western corner is the most visible feature from outside.