The first edition Ordnance Survey map records a clear circular enclosure at this location, but the structure is gone, dismantled stone by stone during the 1950s when its fabric was quarried for road building. What survives is the memory of it, kept alive in local knowledge that still refers to the spot as a fort.

Ringforts, roughly circular enclosures typically defined by earthen banks or stone walls, were among the most common settlement forms in early medieval Ireland, used as farmsteads and enclosed living spaces. The Cill Na Gcolmán example belongs to a subtype known as a cashel, meaning it was built from stone rather than earth, which made its material all the more useful to road crews with a practical problem to solve. Associated with the site is a possible souterrain, an underground stone-lined passage or chamber, often found alongside ringforts and thought to have served for storage or refuge. That underground feature may yet survive, even if the enclosure above ground does not. The site sat in pasture with an open westward view across low-lying land, the kind of position that would have made good sense to a farmer choosing where to build a thousand or more years ago.