The term enclosure covers a broad category in Irish archaeology, ranging from the circular earthen banks of early medieval ringforts, which served as farmsteads and symbols of status, to prehistoric field boundaries and ecclesiastical enclosures surrounding early church sites. Without knowing which kind this is, the site occupies a curious position: acknowledged, named, and catalogued, but presently without a public account of what it actually is or what it contains.

Killestry is a small townland, and like many such places in Clare it sits within a county that has an unusually dense concentration of ancient earthworks, cashels (stone-built ringforts), and field monuments of various periods. The county's landscape, particularly in the Burren and its fringes, has preserved archaeological remains in exceptional numbers, partly because the thin soils and relatively low levels of intensive tillage have allowed earthworks to survive where they might otherwise have been ploughed away. Whether this particular enclosure belongs to that pattern of survival, or represents something older or more unusual, remains a question that the available record does not yet answer.