You would never know it was there if you were standing on the ground. It reveals itself only from the air, as a faint ring pressed into the landscape, visible in aerial photography but leaving no trace that a person walking through the grass could detect.

Enclosures of this kind are a recurring feature of the Irish archaeological record. They are generally understood as the remains of early medieval farmsteads or settlement boundaries, often defined by an earthen bank or fosse that has, over centuries, been ploughed, grazed, or otherwise reduced to near-invisibility. At Poulagower, whatever once marked the perimeter of this circle, whether bank, ditch, or structural remains, has been so thoroughly flattened by time and farming that its outline survives only as a slight variation in soil composition or crop growth, the kind of difference that catches light and shadow differently when seen from altitude. The site is recorded from a single aerial photograph, which is itself something of a common situation in Irish field archaeology; many enclosures across the country are known from no other evidence.