The trees are a clue that something deliberate lies beneath them; the enclosure they occupy is old enough, and unusual enough in form, to have been recorded as an archaeological monument, yet quiet enough that most people passing nearby would never give it a second glance.

The enclosure is subcircular, measuring approximately 38 metres north to south and 33 metres east to west, and sits just to the south-east of an area of exposed rock outcrop. It is defined by an earthen bank, a type of boundary construction common across prehistoric and early medieval Ireland, though the precise date of this example is not recorded. The bank varies considerably in width, from around 3 metres on the western side to as much as 7 metres at the north, and its height differs depending on whether you measure from inside or outside the circuit: the interior face rises only modestly, between 0.1 and 0.4 metres, while the exterior face is more pronounced, reaching between 0.4 and 1.4 metres. Along parts of the circuit, particularly to the north-east and south-east, the bank gives way to a scarp, a cut or slope in the ground rather than a built-up ridge. There are also faint traces of a fosse, essentially a ditch dug to accompany and reinforce the bank, surviving at the northern arc. A 2-metre-wide entrance gap on the west-south-west side may look like an original feature, but is considered possibly modern in origin. What the enclosure was built for, and by whom, remains unrecorded.