That much is certain. Beyond the bare fact of its existence and its classification as a monument, the details remain unrecorded in any publicly accessible form, which places it in a curious category of Irish archaeological sites: officially noted, formally listed, and almost entirely undescribed.

Earthworks is a broad term that can cover a considerable range of human-made landscape features, from the raised raths and ringforts that dot the Irish countryside to linear banks, enclosure ditches, and the levelled remains of structures whose original purpose has long since been obscured by time and vegetation. Clare has no shortage of such monuments, the county's limestone terrain having supported human settlement across several millennia. Without further detail on Ballybrody's earthwork, its age, function, and original builders remain genuinely open questions.