This circular earthwork, known as a rath, consists of an earthen bank that still rises up to 1.5 metres in places, creating a protective enclosure that would have once sheltered a small farming community. The southwestern side shows faint traces of what might have been a fosse, or defensive ditch, whilst the northern section reveals hints of stone facing on the bank's exterior; evidence of the care taken in its construction centuries ago.

Time and nature have left their mark on this monument. A stream now flows directly through the northern half of the fort, having broken through the western bank before exiting through a gap on the eastern side, likely channelled into a modern drain. Several other breaches punctuate the circular bank, though whether these are original entrances or later damage remains unclear. The interior of the fort slopes gently from west to east, and scattered boulders lie across the ground, though they form no discernible pattern that might hint at the locations of former buildings or structures.

Today, the site sits quietly beneath heavy overgrowth, its earthen contours softened by vegetation but still clearly visible to those who know where to look. Like thousands of similar ringforts scattered across Ireland, this rath in Listicall Upper served as both home and fortress to early Irish families, providing security for people and livestock whilst commanding views across the surrounding landscape. Though modest in appearance, these earthworks represent one of the most common and enduring monuments of ancient Ireland, with this particular example documented in the Archaeological Survey of County Donegal since 1983.