This subcircular earthen enclosure measures 18.5 metres across its interior and is surrounded by a substantial bank with a defensive ditch, or fosse, still clearly visible along its northern and eastern sides. What appears to be an original entrance can be spotted in the eastern section of the bank, whilst the remains of a circular stone foundation lie against the inner northern edge, possibly marking where a dwelling or storage structure once stood.

The fort’s interior sits noticeably higher than the surrounding farmland, a characteristic feature that would have provided its inhabitants with both drainage advantages and a commanding view of the fertile lands below. This elevated position on Dromore Hill, combined with the quality of the surrounding agricultural land, suggests this was once home to a prosperous farming family during the early medieval period, roughly between the 5th and 12th centuries AD. Such ringforts served as fortified farmsteads rather than military installations, housing extended families along with their livestock, crops, and craftwork.

Archaeological surveys indicate that thousands of these ringforts once dotted the Irish landscape, with County Donegal alone containing hundreds of examples. This particular site at Machaire Dromann represents the typical design of these settlements; a circular or oval enclosure defined by earthen banks and ditches, with internal structures built of timber, wattle and daub, or occasionally stone. Though the wooden buildings have long since vanished, the earthworks remain as enduring monuments to a way of life that dominated rural Ireland for centuries.