It was recorded on the Ordnance Survey six-inch map of 1842 as a hachured oval raised area, roughly 70 metres north to south and 50 metres east to west, sitting on a south-facing slope above the Owenboy River valley. Hachured markings on early OS maps indicate an elevated or embanked feature, the cartographers' shorthand for a mound or enclosure with enough physical presence to be worth noting. Sometime between that survey and the present, the feature was levelled entirely. There is no visible surface trace left in the pasture.

What makes the site quietly interesting is precisely this gap between the historical record and the ground itself. The 1842 map fixes a moment when the earthwork was still legible in the landscape, substantial enough to be measured and drawn by surveyors working at a scale where only genuinely prominent features earned attention. Its oval plan and dimensions are consistent with a range of enclosure types found across Cork, from ring forts to earlier prehistoric earthworks, though without excavation the original purpose and date remain unknown. The Owenboy valley setting, a sheltered south-facing slope with good visibility across lower ground, is characteristic of sites where people chose to build for reasons of both practicality and position. What removed the earthwork is equally unrecorded; agricultural improvement, particularly the deep ploughing and land drainage that reshaped so much of the Irish countryside during the nineteenth and twentieth centuries, is the most likely explanation.