A circular enclosure roughly thirty metres across, invisible at ground level, shows up as a cropmark, the faint discolouration caused by a buried fosse, or ditch, influencing how the grass or grain above it grows. The enclosure itself was never photographed directly; what the aerial survey captured in July 1989 was essentially its shadow, pressed into the soil.

What makes the site quietly remarkable is less the enclosure itself than its immediate company. Within a radius of roughly two hundred metres, at least three other enclosed or bounded sites cluster around it: a ringfort sits only twenty metres to the north, another enclosure lies forty metres to the south-west, and a further circular enclosure appears about a hundred and seventy metres to the north. A field system is also recorded nearby. Ringforts, roughly circular earthwork enclosures typically used as defended farmsteads during the early medieval period, are common across Ireland, but this particular concentration at Ballymee suggests the landscape was organised and actively managed over a long period, with different enclosures perhaps serving different functions, agricultural, residential, or otherwise, in proximity to one another. The Ballymee enclosure has not been dated independently, and without excavation its exact purpose and period remain open questions.