The earthen bank that defines it stands only about thirty centimetres at its highest point, and for a good stretch of the circuit there is no bank at all, just level pasture where something once stood. What survives is perhaps sixty percent of a ring that, in its original form, would have been a nearly circular enclosure roughly twenty-three metres across.

Circular earthen enclosures of this kind are among the most common archaeological monuments in Ireland, and among the most quietly vanishing. Known variously as ringforts or raths, they were typically the enclosed farmsteads of early medieval families, the surrounding bank and ditch offering a degree of security for livestock and household alike. This particular example at Knockphelagh now measures approximately 23.5 metres on its longer axis and around 18 metres on the shorter, defined by an earthen scarp about 2.3 metres wide along the southern to north-eastern arc. The northern and eastern sections have been levelled entirely, most likely through successive rounds of agricultural improvement, and the interior, though it undulates slightly, is clear of any overgrowth. The overall condition is recorded as poor.

What makes the site quietly worth noting is precisely that quality of near-disappearance. The D-shape it presents now is an accident of erasure rather than an original feature, a monument slowly being absorbed back into the improved pasture surrounding it. Visiting would mean knowing what to look for: a low, faint earthwork that rewards patience and a low angle of light more than any dramatic reveal.