There are no headstones, no kerbing, no visible boundary walls. The only reason anyone suspects it was ever a burial ground is a ring traced on an old Ordnance Survey six-inch map, the kind of cartographic notation that records what surveyors once observed but time has since obscured.

The Blessington Reservoir was created in the 1940s when the River Liffey was dammed to supply water to Dublin and to power the Poulaphouca hydroelectric scheme. The flooding of the valley submerged a considerable stretch of the old landscape, including roads, field boundaries, and the remnants of earlier settlement. A burial ground on the reservoir's edge would have sat just above the waterline, or perhaps was only spared by the narrowest of margins. Circular enclosures of this kind, sometimes called ráiths or ringforts in other contexts, were also used in early Christian Ireland as burial places, often associated with a church or community long since vanished. Here, no such associated features survive, at least none that are visible above ground, which makes the site difficult to date or interpret with any confidence.