Most ancient mounds in Ireland tend toward the circular, so the elongated, irregular outline recorded here, roughly 21 metres along its north-north-east to south-south-west axis and just 6 metres across, is quietly anomalous. It rises only about a metre and a half above the surrounding ground, which itself slopes gently away to the north, meaning the mound sits in relatively flat agricultural land rather than on any commanding height.

When surveyors recorded this feature in 1992, it had already been clipped by a field boundary along its eastern edge, truncating whatever original profile it once held. It lies along the eastern boundary of what is now a large open field given over to cereal cultivation, and it presents not as a clearly defined monument but as an overgrown irregularity, a kink in the field boundary, the kind of thing that catches the eye of someone who knows to look for it. Who built it and when remains unrecorded in the available notes; it belongs to that broad category of earthworks scattered across the Irish landscape whose origins have not been firmly established by excavation or documentary evidence. The survey work was compiled by Geraldine Stout and later updated by Christine Baker, with the record uploaded in October 2014.

Finding the mound requires some patience. It sits within a working agricultural field near Garristown village, and because it presents as little more than a weedy thickening along a field margin, it can easily be overlooked from a distance. The clearest indication of its presence is that characteristic kink in the boundary line. What the location does offer, regardless of the mound's own ambiguity, is an open view northward toward the Naul ridge, a low but distinct horizon that has oriented this part of north County Dublin for a very long time.