At roughly 82 metres north to south and 104 metres east to west, the enclosure is enclosed by an earthen bank standing about a metre high, portions of which have been absorbed into the field boundary fences that now cross the area. A stream runs along the outside of the bank from the south-west toward the north, tracing what may once have been a deliberate choice of location, water serving both as a practical resource and as a natural reinforcement of the enclosure's boundary.

Earthwork enclosures of this type are a familiar but still poorly understood category of monument in the Irish countryside. They are broadly defined by a raised bank, sometimes accompanied by an internal fosse, which is simply a ditch dug to provide material for the bank alongside it. At Scart, low traces of a second, inner bank survive on the south-western to northern arc, with a fosse between the two running to about a metre in depth. Whether the enclosure served as a defended settlement, a stock enclosure, or something with a ritual or territorial function is not certain. The interior is described as level, which is typical of sites that were deliberately engineered rather than naturally formed, suggesting sustained human effort at some point in the past. The earthen bank forming field boundaries in places is a reminder of how often earlier monuments were quietly repurposed rather than demolished, their physical presence too useful to ignore even when their original meaning had long been forgotten.