Measuring roughly ten metres on its longer axis and eight on the shorter, the raised stony area is thought to represent the collapsed remains of a hut, the kind of domestic structure that would once have stood within the enclosure of the rath itself.

A rath, to give the term its context, is a ringfort, one of the most common monument types in the Irish landscape, typically a circular area enclosed by an earthen bank and ditch, used during the early medieval period as a farmstead or settlement. That a hut should survive, however partially, within the southern quadrant of the one at Knockearagh is not in itself surprising; such enclosures were domestic spaces, and traces of internal structures occasionally endure. What is quietly notable here is simply that it does survive, in however ruinous a form, the stony outline still legible beneath the vegetation that has grown up around it over the centuries.