That deliberateness of placement is one of the more quietly striking things about this site. Whoever raised these banks chose the spot with care, and the landscape still reads that way.

The fort is roughly subcircular in plan, measuring approximately 35 metres east to west and 30 metres north to south. It is defined by an overgrown earthen bank, separated from a broader but slighter outer bank by a fosse, which is simply a defensive ditch dug to increase the effective height of the inner bank above any approaching ground level. The fosse and outer bank run from the southwest around through north to the east-southeast, giving the enclosure a layered defensive profile on those sides. The original entrance, at the east-southeast, has a base width of 2.5 metres, narrow enough to be controlled but wide enough for practical use. Earthwork enclosures of this general type are found throughout Ireland and are associated broadly with the early medieval period, though precise dating of any individual example generally requires excavation. The grass cover here has kept the banks intact, and the whole thing remains legible in the landscape as a coherent, purposeful structure.

The drumlin topography of County Monaghan, formed by glacial deposits shaped into elongated hills, made ridgelines like this one naturally attractive for settlement and defence. A position at the summit of such a ridge would have offered clear sight lines across the surrounding lower ground, and the ridge's orientation would have defined the directions from which approach was easiest or most exposed.