The site is a cist, a type of small stone-lined grave box used during the Bronze Age to hold cremated remains, and what makes Knockadea notable is the layered nature of its discoveries: human bone, ceramic urns, and a burial arrangement that speaks to a deliberate ritual landscape compressed into a very small area of ground.

The archaeological record here draws on two distinct finds. Around 1916, a cist measuring roughly 0.9 metres by 0.6 metres was uncovered near Knockadea, described by the archaeologist John Waddell in 1970 as a small vault containing fragments of dried bones. Just 1.8 metres away, an inverted encrusted urn burial was found alongside it, the inversion of the urn being a recognised funerary practice of the period, likely intended to protect the cremated remains inside. Then, in May 1929, three cinerary urns, vessels specifically made to contain the ashes of the dead, were discovered in the same townland. For decades, the precise location of these finds remained vague in the literature, described only as being near Knockadea. It was the work of local historian Nioclàs Ó Duinnín that brought the specific townland location back into focus, with the record compiled and revised by Caimin O'Brien based on details supplied by both Ó Duinnín and James O'Brien, and updated as recently as February 2022.

Because the site exists primarily as an entry in the archaeological record rather than a visible monument, there is little to see above ground today. The value here is less in a physical visit and more in understanding that this ordinary-looking stretch of Limerick farmland holds multiple episodes of Bronze Age burial activity. Anyone interested in the wider landscape should explore the Sites and Monuments Record entry for the associated urn burial, listed as LI057-072, which provides a useful starting point for tracing what else survives in the area. Local knowledge, as the recent identification of this site demonstrates, remains an underused resource when it comes to understanding what the official record has only partially captured.