What remains is barely visible: a slight undulation in the pasture traces a subcircular outline roughly thirty metres across, interrupted on its south-eastern arc by a post and wire fence, and obscured further by centuries of levelling. Without knowing what to look for, a visitor could walk across it without registering anything at all. An enclosure, in this context, refers broadly to a defined area bounded by a bank, wall, or ditch, the kind of feature found across Ireland in many forms and periods, from early medieval ringforts to prehistoric settlements. At Knockacurreen, the character of this one remains uncertain.

What makes the site particularly interesting is the gap in the cartographic record. It does not appear on the Ordnance Survey six-inch maps of 1838 or 1931, suggesting it had already been largely obliterated by the time systematic mapping began in Ireland. Its only early documentary appearance is on an 1830 estate map held at the National Library of Ireland. That a private estate survey captured what the later Ordnance Survey missed points to how much of the landscape was already being reshaped by agricultural improvement and land reorganisation during the nineteenth century. A few other features complicate the picture: a levelled field bank runs parallel to the enclosure about six metres to the south-east, a grassed-over hollow roughly four metres across cuts into the scarp at the north-north-east, and a small stone-filled pit sits on the southern edge. Whether these relate to the enclosure itself or represent later agricultural activity is not recorded.

The hilltop position was clearly not accidental. The ground falls away steeply to the north and north-west, and on a clear day the Partry Mountains sit on the western horizon while the distinctive cone of Croagh Patrick is visible to the north-west. That orientation, looking out towards one of Ireland's most significant pilgrimage peaks, gives the spot a quality that no amount of levelling has quite managed to remove.