Where most such enclosures tend toward a regular circle, this one is described as subcircular or plectrum-shaped, the kind of comparison that makes immediate sense once you picture a guitar pick: broad and rounded at one end, narrowing toward the other. Running approximately a hundred metres from north to south, it measures around ninety metres across at its southern end and narrows to roughly seventy metres at the north.

The enclosure was reported to the National Monuments Service by Conn Herriott and became visible through Digital Globe satellite imagery captured between 2011 and 2013, a reminder that aerial and satellite survey continues to surface features that ground-level inspection can easily miss, especially where pasture has softened the earthworks over centuries. What makes the site particularly interesting is not just the enclosure itself but what surrounds and inhabits it. A second internal enclosing feature appears to run from the north around to the southeast, suggesting the space may have been subdivided or used in distinct phases. Several large internal divisions are also visible, and contemporary field boundaries radiate outward from the perimeter in multiple directions, tying the enclosure into a wider, irregular field system that itself spans several periods. The term multiperiod field system refers to a landscape where boundaries were laid down, modified, and overlaid across different eras, sometimes spanning prehistoric through to early medieval use, and Ballyconnoe appears to sit at the organised centre of exactly that kind of accumulated rural history.