This circular earthwork, measuring approximately 27 to 28 metres in internal diameter, sits on the slope of a ridge where generations of farming have gradually worn away much of its original structure. What survives today is a fragment of the earthen bank on the northwest side, where stones still rise about 0.4 metres high; a modest reminder of what would have once been a substantial defensive barrier encircling a farmstead.

Ringforts, known locally as raths, were the predominant settlement type in rural Ireland between roughly 500 and 1200 AD. These circular enclosures, defined by earthen banks and external ditches, served as protected homesteads for farming families. The Menamny example follows this typical pattern, though centuries of agricultural activity have ploughed out most of the bank that would have originally stood several metres high. The choice of location on a ridge slope, even in marshy ground, was likely strategic; offering good visibility across the surrounding landscape whilst the wetland below provided an additional natural defence.

The site was documented as part of the Archaeological Survey of County Donegal, a comprehensive catalogue compiled in 1983 that recorded field antiquities from the Mesolithic period through to the 17th century. Like thousands of other ringforts scattered across the Irish countryside, this one at Menamny represents the everyday life of early medieval Ireland; not the grand castles of lords and kings, but the practical, defended farms where most of the population lived, worked, and raised their families in an often uncertain world.