The Ordnance Survey mapped it in 1839 as a neat circular enclosure roughly 45 metres across; by 1925, the same feature was being recorded as D-shaped. Whether this reflects genuine physical change, differences in surveying method, or simply the way scrub and fieldwork alter a landscape's legibility over time is not entirely clear. That ambiguity is part of what makes the site quietly interesting.

A ringfort, sometimes called a rath, is typically an enclosed farmstead from the early medieval period, bounded by one or more earthen banks and ditches. At Kilcloran, the enclosure sits just off the crest of an east-facing slope and measures roughly 43 metres northwest to southeast and 30 metres northeast to southwest. It is defined on its southern side by a straight field bank, while the western, northern, and eastern margins are shaped by a low earthen bank, around three metres wide, with an external fosse, or ditch, running along the outside. The bank itself rises only about half a metre on the interior and a metre on the exterior, so it is a modest earthwork rather than an imposing one. No entrance is visible at ground level, which is not unusual for sites of this kind, where original gaps may have been filled in or obscured over centuries of agricultural use.

The interior is now covered in grass and scrub and planted with deciduous trees, which is a common fate for ringforts across Ireland. The tree cover can make the overall shape harder to read from within the site, but it also tends to preserve the underlying earthworks by discouraging ploughing and heavy grazing. The fosse running around the exterior is probably the clearest surviving indicator of the original enclosure's extent and intent.