What looks like an ordinary curving field fence, grown over with trees, bushes, and briars, may in fact trace the outer edge of an early ecclesiastical enclosure roughly 500 metres in diameter, one of the largest such features if confirmed. A modern road cuts straight through it on a north-east to south-west axis, bisecting whatever once lay within, and most people travelling that road would have no reason to suspect the boundary hedgerow beside them is anything other than a farmer's convenience.

Ecclesiastical enclosures of this kind, usually circular or oval in plan, defined the sacred and functional territory around an early Irish monastery or church site. They could contain not just a church but burial grounds, living quarters, gardens, and workshops, all set apart from the surrounding landscape by a bank, ditch, or wall. In this case, the curving alignment was identified by O'Hare in 2000 as a possible enclosure, its south-western arc preserved in the townland boundary of Roxborough. The problem with reading it is precisely what makes it interesting: the enclosing elements are, by all appearances, indistinguishable from the other field boundaries nearby. Age and agricultural reworking have left the landscape largely flat and unremarkable to the untrained eye, with no obvious earthwork or ruin to prompt a second look.