This ringfort, known locally as Caiseal Na Gcorr, occupies a rocky platform overlooking the Glenna River to the west. Despite its historical significance, you won’t find any trace of it marked on the 2nd and 3rd editions of the Ordnance Survey 6-inch maps, adding to its enigmatic character.

What remains today is a circular platform of exposed rock, bordered by a modern stone wall that follows the original fort’s perimeter. Local residents have long recognised this site as ‘the Fort’, preserving its memory through oral tradition even as official records overlooked it. The structure sits on sloping pastureland, its elevated position offering commanding views across the river valley; a strategic advantage that would have been crucial to its original inhabitants.

The cashel represents one of thousands of similar defensive settlements that once dotted the Irish countryside, typically dating from the early medieval period. These stone-built fortifications served as protected homesteads for farming families, combining domestic living spaces with defensive features. Though time has worn away much of Cashelnagor’s original stonework, the site continues to tell the story of Ireland’s rural heritage, standing as a tangible link to the communities who shaped this landscape centuries ago.