Enclosures of this kind are among the most common monument types in the Irish archaeological record, taking many forms: they might be the remains of a ringfort, a rectangular field enclosure from any number of periods, or the faint outline of a settlement or farmstead that predates the demesne landscape laid over it. What makes this particular example quietly interesting is its location within demesne lands, where the deliberate reshaping of the terrain during the eighteenth and nineteenth centuries for aesthetic purposes often buried, altered, or simply absorbed earlier features into the new order of things.

Westport Demesne surrounds Westport House, the seat of the Browne family, later the Marquesses of Sligo, and the landscape was substantially developed from the mid-eighteenth century onwards. The grounds were designed with input attributed to James Wyatt, who worked on the house itself in the 1770s, and the wider demesne was shaped to reflect the fashionable naturalistic parkland style of the period. That earlier archaeological features survive within such a carefully managed landscape is not unusual in itself, since earthworks can persist even where the surface has been reworked, but it does mean that the enclosure's original context, the surrounding field systems, tracks, or settlement patterns it once belonged to, is likely obscured or gone entirely.