It is recorded as a monument, which means someone, at some point, judged it significant enough to note and protect, but the details of what it contains, how old it is, and who may have been laid to rest there remain out of reach for now.

Cloonaghlin is a small rural townland in Cork, and burial grounds of this kind in such settings can range considerably in character and age. Some are early medieval in origin, associated with a now-vanished church or a local saint's cult. Others are children's burial grounds, known in Irish as cilliní, where unbaptised infants were interred separately from consecrated parish cemeteries, often in liminal spots such as field boundaries, ringfort interiors, or old earthwork enclosures. Without more detail it is not possible to say which category this site falls into, or whether it fits neatly into any category at all.