This circular earthwork, measuring approximately 20 metres across its interior, rises up to 0.9 metres above the surrounding pastureland. Though centuries of erosion have taken their toll, particularly on the southeastern side where the structure has been badly worn away, the northwestern section still preserves substantial remains of the original defensive features.

The most impressive surviving element is the perimeter bank on the northwest, which stands up to 2.4 metres high; a considerable earthen rampart that would have supported a wooden palisade fence in its heyday. Outside this bank, archaeologists have identified traces of a fosse, or defensive ditch, now filled with centuries of silt but once forming an additional barrier against unwanted visitors. The interior of the ringfort follows the natural slope of the ridge, tilting gently towards the southeast, suggesting the original inhabitants worked with rather than against the landscape’s natural contours.

This type of ringfort, known locally as a rath, represents one of Ireland’s most common archaeological monuments, with thousands scattered across the countryside. Dating primarily from the early medieval period (roughly 500 to 1200 CE), these enclosed farmsteads housed extended families along with their livestock, crops, and craftwork. The Cloverhill or Drumbeg example, though partially eroded, remains a tangible link to this era when such fortified homesteads dotted the Donegal landscape, each one a small centre of agricultural life and local power.