A ditch barrow, as the type is known, is defined not by an earthen mound but by a surrounding fosse, a shallow trench or ditch, which traces out the boundary of the sacred or funerary space. At Ballynacree, that fosse is modest to the point of near-invisibility: roughly a metre wide and only five centimetres deep, enclosing a circular interior about ten metres across. The ground inside is level and uncluttered, offering no dramatic surface feature to reward a casual glance.

What makes the site quietly interesting is its company. A second ditch barrow sits just sixteen metres to the north-north-east, and a ringfort, a type of enclosed farmstead used throughout the early medieval period, lies about seventy metres to the south-west. This clustering of monument types across a small area of pasture suggests a landscape that was in use, and held significance, across a very long stretch of time, from prehistoric burial practice through to early medieval settlement. The relationship between these features, whether the ringfort builders were aware of and responding to the earlier monuments, or simply farming ground that happened to carry old earthworks, is the kind of question the archaeology of such sites rarely answers cleanly.