The structure is an ecclesiastical enclosure, a type of roughly circular or subcircular boundary, typically defined by a bank or ditch, that in early medieval Ireland demarcated church land from the secular world beyond. The qualifier "possibly" still attaches to this one, which is part of what makes it worth paying attention to; it sits in that uncertain zone where archaeology shades into probability rather than certainty.

Ordnance Survey mapping from the period 1912 to 1916 recorded the enclosure at a scale of 1:2500, capturing it as a roughly subcircular form measuring around 77 metres on its northwest to southeast axis, with a defining bank running from the east, around through the south, and back to the northwest. By the time the site was physically inspected, subsequent agricultural reorganisation had done considerable damage. Field boundaries had been drawn across and around it, one clipping the northern arc, another cutting straight through the interior. Only a short run of the original bank survived, from the west around to the north-northeast. What remained was grass-covered and built mainly of stone, with a base width of 3.6 metres, an interior height of around 0.3 metres, and an exterior height of 0.8 metres, modest dimensions that speak to centuries of settling and disturbance. Three gaps of between two and three metres wide were also visible. To the southeast of an interior field boundary, a church and graveyard are recorded as separate features, their presence lending weight to the ecclesiastical interpretation of the wider enclosure. The site lies on land that was formerly part of Eyrecourt Demesne, the estate associated with the village of Eyrecourt in east Galway, meaning the landscape it sits within has itself been shaped and reshaped by later landholding arrangements that had little interest in preserving what lay beneath.