Though it appears as a single-ringed fort on the old Ordnance Survey 6-inch maps, no physical trace of this ancient structure survives today. The site occupied a rather inhospitable location; a high, wet field that slopes northward towards the edge of a tree-filled crevice, suggesting its builders chose defensive positioning over comfort.

Ringforts like this one were once common across the Irish countryside, serving as fortified homesteads for farming families from the early medieval period through to the 12th century. These circular earthen enclosures, surrounded by banks and ditches, provided protection for dwellings, livestock and grain stores. The Drumnacross fort would have been typical of thousands that once dotted the Donegal landscape, most of which have since been levelled by centuries of agricultural activity.

The site was documented as part of the Archaeological Survey of County Donegal, a comprehensive catalogue compiled by Brian Lacey and his team in 1983. This survey recorded field antiquities spanning from the Mesolithic period to the 17th century, preserving vital information about sites like this ringfort that might otherwise be forgotten. While the physical fort may be lost, its inclusion in historical maps and archaeological records ensures that this small piece of Drumnacross’s ancient past remains part of the historical record.