This is a boulder-burial, a type of megalithic monument found almost exclusively in the southwest of Ireland, in which a large capstone is raised on low supports to create a minimal, compressed chamber beneath. Unlike the more familiar portal tombs or passage graves, boulder-burials are modest in scale and easy to overlook, yet their placement is rarely accidental. This one measures 1.5 metres long, 1.2 metres wide, and stands 0.9 metres high, its hog-backed, irregular form giving it a distinctly geological rather than architectural appearance, as though the landscape simply arranged itself this way.

The boulder-burial sits in open pasture with wide views across undulating countryside to the southeast and southwest, and westward toward Shehy More, a significant upland in the Shehy Mountains on the Cork and Kerry border. The ground rises to the east and a coniferous wood lies to the north, framing the site without enclosing it. What makes the location more remarkable is that it does not stand alone. Approximately 23 metres to the west-southwest lie two further monuments: a pair of standing stones and a second boulder-burial. The clustering of these three distinct monument types within such a short distance of one another suggests that this corner of Knockanereagh held some sustained ceremonial or funerary significance in prehistoric times, though the precise nature of that significance remains, as with so much of this period, a matter of careful inference rather than certainty.