No cartographer recorded it, no monument marker points to it, and for most of its history it sat unnoticed beneath open sky on a north-facing slope somewhere outside the townland of Ballymacreese.

The site came to light not through fieldwork but through the aerial photograph known as Bruff 1 (AP 4/3744), which revealed cropmarks, the faint ghostly outlines that buried or earthen features leave in growing crops when viewed from above. A site inspection followed in 2005, and what investigators found on the ground was a small oval or sub-oval enclosure measuring 15.7 metres north to south. Its edges are defined at the north and south by a scarp, a low step or edge in the ground surface, here only about 0.1 metres high and 0.6 metres wide, subtle enough to walk across without noticing. Around that is a fosse, essentially a shallow ditch, with a base width of one metre and a depth of just 0.15 metres. The interior of the enclosure slopes gently to the north. None of these features are dramatic in isolation, but together they describe a deliberately shaped space. What it was used for, and when, the notes do not say. Enclosures of this general type turn up across Ireland in contexts ranging from early medieval settlement to agricultural or ritual use, but without excavation or dating evidence, this one keeps its purpose to itself. Cropmarks of a possible further enclosure are visible on Ordnance Survey Ireland aerial imagery, suggesting there may be more beneath the surface than the inspection alone revealed. The record was compiled by Martin Fitzpatrick and uploaded in July 2020.

The site sits on a north-facing slope with good views in all directions, which at least makes orientation straightforward for anyone who finds themselves standing there. Because it is not marked on OS maps, locating it requires either access to the aerial photography record or a careful reading of the landscape itself. The earthworks are genuinely slight, and on a damp or overgrown day the scarp and fosse could easily read as nothing more than natural variation in the pasture. Early morning light, when low sun throws even shallow ground features into relief, is the most useful condition for picking out the slight shadows that mark the enclosure's edge.