What the first Ordnance Survey cartographers recorded in 1839 as a tree-ring, that distinctive circular or oval arrangement of trees often planted as a windbreak or ornamental feature around older earthworks, was by the 1900 revision being marked with hachuring, the conventional shorthand used to indicate an archaeological monument. The reclassification is telling. What looked at first glance like a landscaping feature was evidently recognised, by the time of the later survey, as something older and more deliberate.

The enclosure lies within the demesne of Banse House, a property situated roughly 130 metres to the north-east. The earthwork itself is oval in plan, measuring approximately 47 metres north to south and 53 metres east to west, dimensions consistent with the kind of enclosed settlement or farming enclosure that was common across Ireland in the early medieval period, though no specific dating has been attached to this particular example. Its outline is no longer fully intact. A farm road running north to south has cut through the western quadrant, removing a section of whatever bank or boundary once defined that side of the enclosure. What survives gives enough of the shape to understand the original form, even if part of it has been lost to the practical demands of working land.