The enclosure measures roughly 39 metres on its northeast to southwest axis and 44 metres across, making it a substantial earthwork by any measure, yet the later boundary cuts straight across it with complete indifference to what was already there, a pattern that appears repeatedly across the Irish countryside wherever post-medieval land reorganisation overtook earlier features.

Earthwork enclosures of this kind are common across the Irish midlands, though their precise origins and functions vary considerably. Some are associated with early medieval settlement, serving as the defining boundaries of a farmstead or small defended homestead. Others may relate to stock management or field systems of different periods. What gives the Moyvoughly example additional interest is its proximity to a possible bowl-barrow, a type of prehistoric burial monument consisting of a rounded mound typically surrounded by a ditch, located roughly 130 metres to the west-northwest. Whether the two features are related in any meaningful way is unknown, but their closeness raises the kind of question that makes low-lying midland pasture rather more layered than it first appears.