The monument is a ring-barrow, a circular earthwork comprising a low central mound enclosed by a ditch and outer bank, typically associated with Bronze Age burial practice in Ireland. What makes this particular example quietly remarkable is not its size, which is modest at around six metres in external diameter, but rather the company it keeps and the degree to which it has slipped from visibility.

The barrow belongs to a ring-barrow cemetery of nine such monuments clustered within a 200-metre radius in the Rockbarton area of Smallcounty Barony, roughly 1.7 kilometres west-northwest of Lough Gur. That proximity matters, since Lough Gur is one of the most densely concentrated archaeological landscapes in Ireland, with activity spanning the Neolithic through to the medieval period. The Rockbarton cemetery was not recorded on historic Ordnance Survey Ireland maps at all, which means it passed unnoticed through the era of systematic nineteenth-century mapping. It was first identified during the Bruff aerial photographic survey in 1986, catalogued as Bruff 37 under reference AP 4/3644, when the circular form of the monument became legible from the air. Subsequent orthoimagery, including OSi surveys taken between 2005 and 2012 and DigitalGlobe imagery from 2011 to 2013, confirmed the site, but by the time Google Earth captured the ground in June 2018, the feature had become imperceptible. The record was compiled by Edmond O'Donovan and uploaded in October 2020.

The site lies approximately 125 metres southwest of the townland boundary between Ballycullane and Grange, on low-lying agricultural land that is notoriously wet underfoot. There is no formal public access, and the monument itself offers little to the naked eye at ground level; its form is essentially only legible from above, and even then only under the right conditions of crop stress, frost, or low-angle light. Anyone with a serious interest in the broader cemetery of which it forms a part would do better to start with the Lough Gur area and work outward, using the National Monuments Service database entries to cross-reference the cluster of related ring-barrow records before making any approach across the pasture.