The one at Mountgale in County Kilkenny breaks that convention with a distinctly triangular outline, narrowing from a broad northwestern end to a point roughly ten metres wide at the southeast. That asymmetry alone makes it an odd presence in the pasture it occupies.

The enclosure measures approximately 42 metres along its northwest-to-southeast axis, widening to around 37 metres at its broadest point. It was already considered significant enough to record on the first edition Ordnance Survey six-inch map, produced in 1839, and it reappeared on the 1900 revision, suggesting it remained a legible feature in the landscape across much of the nineteenth century. A second enclosure sits around 100 metres to the southeast, raising the possibility that the two were related in some way, perhaps part of the same settlement complex or farming arrangement, though what connected them is not known. At some point after the later mapping, the monument was levelled, most likely through agricultural activity. It no longer projects as a defined earthwork, but satellite imagery reveals it as a faint raised area within the field, the underlying archaeology pressing quietly through the grass just enough to be seen from above, if not easily from the ground beside it.