The enclosure is vast, roughly 455 metres northwest to southeast and close to 490 metres on its other axis, making it one of those quietly anomalous sites where the sheer scale hints at significant early importance, even as the landscape around it has moved on entirely into ordinary farmland.

The enclosure survives as a large subcircular earthwork, visible on Ordnance Survey maps going back to 1842 and consistently recorded again in 1905 and 1937, its outline defined today by a combination of field fences and earthen banks of varying condition. To the west, a wide flat-topped bank stands about 1.45 metres high, though its outer face has been cut into by a steep-sided drain. The southern and southeastern sections retain a more pronounced external height, while the northern bank is lower and accompanied by an external drain of its own. Within this boundary, two separate areas were archaeologically investigated in the early 1990s, both close to the road; neither produced traces of occupation, which is itself a curious result for a space of this scale and apparent purpose. Inside the enclosure there is a possible church site to the south of centre, along with a ringfort and a second possible ringfort in the southwestern quadrant. Just outside the enclosure to the south-southeast, roughly 30 metres beyond the boundary, sits a holy well, a type of site frequently associated in Ireland with early Christian activity and often located in deliberate relationship to an enclosure rather than at random. The townland name itself carries the memory of what stood here: Bowman, writing in 1934, traced it to the Irish "Cill an Bhealaigh", meaning Church of the Road or Church of the Pass, suggesting the place was long identified with both religious function and a routeway.