Megalithic tomb - passage tomb, Ballinascorney Upper, Co. Dublin

What survives is an incomplete circle of kerb-like boulders enclosing an area roughly eight metres across, with four stones at the centre marking what is most likely the hollowed-out remnant of a prehistoric burial chamber. A passage tomb, in general terms, is a megalithic structure in which a stone-lined corridor leads to a central chamber, all originally covered by a mound of earth or stone. The mound here has long since gone, leaving only the skeletal architecture, and even that has been disturbed.

The map history alone tells a small story of changing fashions in antiquarian interpretation. The first edition of the Ordnance Survey six-inch map labelled the site a 'Cromlech', a term once applied loosely to any megalithic structure. By the 1937 edition, it had been revised to 'Stone Circle', which is also inaccurate, or at least incomplete. The scholar Herity, writing in 1974, identified it as the denuded remains of a probable passage tomb, and a note from McDix in 1925 had already observed what he called a 'smaller inner circle', which likely corresponds to those four central stones now visible in the hollow. The more dramatic intervention came in 1986, when forestry work displaced four boulders along the south-eastern side of the monument. An excavation followed in 1988, led by Healy, which established the original positions of the displaced stones and had them replaced. No finds were recovered from that dig, so whatever the site may once have contained, whether cremated remains, grave goods, or structural timbers, nothing legible survives.

The monument sits within a working conifer plantation, which shapes the experience of finding it considerably. The tree cover means light is filtered and the ground is likely to be soft and shaded; stout footwear is sensible. The terrace position on the hill's eastern side means the site is not visible from any obvious approach road, and plantation tracks can be disorienting. Those interested in the finer details should look for the kerb-like boulders forming the outer arc first, as these define the perimeter of the original structure, and then trace the eye inward to the central hollow where the four chamber stones are exposed at ground level. The incompleteness of the outer circle, particularly on the south-eastern arc, is itself a piece of the record, marking where the 1986 displacement occurred and where the 1988 excavation set things, as far as possible, back to rights.