Roughly thirty metres across and covered in grass, it presents itself as a slightly raised platform, the kind of subtle swelling in the ground that the eye can easily dismiss as a natural quirk of the landscape. It is only when viewed from above, whether through satellite imagery or the sharper relief provided by LiDAR technology, that its circular form becomes unmistakable.

LiDAR, which uses laser pulses to map the surface of the ground beneath vegetation and soil disturbance, has become one of the more transformative tools in Irish archaeological prospection, revealing features that centuries of farming and land alteration have rendered all but invisible at ground level. Here, the enclosure shows clearly, its outline interrupted only by a north-south field bank that cuts across its western edge, the kind of later agricultural boundary that frequently slices through older earthworks without any awareness of what lies beneath. The site sits on land once attached to Cornacassa House, a demesne property, and it was first brought to wider attention by Jean Charles Caillére. Beyond that, its origins and date remain unestablished; circular enclosures of this type can belong to many different periods and purposes, from prehistoric ritual use to early medieval settlement, and without excavation or further survey, this one keeps its own counsel.