On a south-west facing slope at Lisín An Óráin, an enclosure once significant enough to be labelled "Fort" on early cartographic records has left no trace whatsoever on the ground. The area has since been planted with forest, and whatever earthworks once defined this place, whether a raised ringfort bank, a simple enclosure ditch, or something else entirely, have been entirely swallowed by intervening decades of land use and planting.

The paper trail is thin but telling. The Ordnance Survey Fair Plan, an early draft mapping document produced during the great nineteenth-century survey of Ireland, recorded the site as a hachured circle, the conventional symbol used to indicate a raised or embanked enclosure. That notation, and the accompanying label, suggest the feature was still legible to surveyors at that stage. Yet by the time the more familiar six-inch Ordnance Survey maps were finalised, the site had already been dropped from the record, omitted without explanation. Enclosures of this kind are typically early medieval in origin, serving as farmsteads or settlement sites, and the Irish word "lisín" in the townland name is itself a diminutive of "lios", meaning a small fort or enclosure, which hints at a long local awareness of something being there long before any cartographer arrived to note it.