Whoever built it was working with the hillside rather than against it, engineering a flat, usable platform inside the enclosure by piling up more material where the slope fell away. It is a small but telling detail about the practical intelligence behind these structures.

Ringforts, sometimes called raths, are the most common archaeological monument type in Ireland, typically dating from the early medieval period, roughly 500 to 1000 AD, and thought to have served as enclosed farmsteads for a single family or small community. The bank at Caherkeegane is composed of earth and stone, running from the north-north-west around to the south, standing about 0.8 metres high on the interior and roughly a metre on the outside. On the eastern side, where the slope does most of its work, the bank survives instead as a scarp, a steep natural or cut face, rising to 1.8 metres and retaining a slight internal lip. A two-metre-wide entrance gap opens to the north-east, though this section has been disturbed by quarrying at some point. Where the earthen and stone bank does not run, a stone field boundary now marks the circuit, suggesting the enclosure has been absorbed into later agricultural use over the centuries.

The fort measures approximately 25 metres across on its north-south axis, which is a fairly modest but typical diameter for a single-family rath. The combination of a surviving scarp, a readable entrance, and the compensatory raised interior makes this a structurally interesting example, even if it sits quietly in a field with nothing to announce it.