Measuring roughly 85 metres north to south and 60 metres east to west, it is a substantial monument in theory, yet on the ground it barely announces itself. What survives is a scarp, essentially a slight drop or shelf in the earth's surface, running from the south through the west and around to the north, along with the faint possibility of an external fosse, a ditch that would once have reinforced the boundary. The eastern half of the circuit has left no visible trace at all at ground level, and only the curving line of a townland boundary wall seems to shadow where that missing arc once ran.

Enclosures of this subcircular form are found across Ireland and belong to a broad tradition of enclosed settlement, though without excavation it is rarely possible to assign a precise date or function to any individual example. They may represent early medieval ringfort activity, earlier prehistoric use, or later agricultural organisation. What makes the Cappagh site quietly interesting is precisely this ambiguity combined with its near-invisibility. The monument is substantial enough in its dimensions to have once been a significant feature in the landscape, yet centuries of agricultural use in low-lying grassland have reduced it to a scarp and a guess. The townland boundary wall effectively preserving the ghost of the eastern arc is a reminder of how older landscape features can survive not as archaeology but as property lines, absorbed into the working infrastructure of the land long after their original purpose was forgotten.