Its grassy interior gives little away, but the Ordnance Survey mapped it in 1838 as an "Old Grave Yd." and by 1920 the same maps name it a children's burial ground. That latter designation places it in a category with particular weight in Irish rural history: a cillín, a place where unbaptised infants and others excluded from consecrated ground were buried, often in sites already set apart from ordinary use. The enclosure at Magheraboy fits that pattern precisely.

The structure itself measures roughly 36 metres north to south and 39 metres east to west, surviving as a slightly raised, broadly oval area. Its boundary varies considerably as you move around it. To the north and north-east the bank has been reduced to a low grassy rise; to the east and south it appears as a stony scarp, in places standing around 1.6 metres on its exterior face; to the south-west it persists as a low stony bank. From south-west round to north-north-west the enclosing element has been levelled almost completely, though a gentle undulation in the ground can still be traced. What makes the site particularly interesting is the suggestion that the enclosure predates its use as a burial ground altogether. The underlying structure may be a ringfort, a type of enclosed farmstead common across Ireland from the early medieval period, which was later repurposed for burial. A cashel, a stone-walled ringfort, lies just 125 metres to the north-west, suggesting this part of the ridge was once a more densely occupied or organised landscape than it now appears.

The site sits in open pasture on the ridge top, and the hawthorn trees that ring its northern and southern perimeter mark it out clearly in the field. The interior remains grassy and largely undisturbed, partly levelled over time but still coherent enough as a shape to read in the ground.