In a waterlogged corner of the grounds at Celbridge Abbey, a low circular mound sits almost without announcement. Roughly sixteen metres across and edged by a shallow fosse, a fosse being the ditch-like depression that defines and originally helped form the mound itself, it reads more like a trick of the terrain than anything deliberately made. It takes a patient eye to recognise it for what it is: a ditch barrow, a type of prehistoric funerary monument in which a low earthen mound is encircled by a surrounding ditch rather than a raised bank.

What makes this particular example quietly curious is how its identity shifted across successive maps. On the first edition of the Ordnance Survey six-inch map, the site appears simply as a small grove of trees, giving no indication of any underlying structure. By the time the revised edition was produced, cartographers had captured it differently, as a small circular enclosure, which at least hints at the geometry beneath. That transition between representations, from incidental woodland to deliberate form, suggests the trees were at some point cleared or thinned enough for the enclosure's shape to become legible again. The mound itself sits on flat, poorly drained grassland, with a second ditch barrow recorded approximately fifty metres to the north-north-east, so this is not an isolated curiosity but part of a small cluster of related monuments occupying the same damp ground.