That single word, enclosure, covers a broad range of structures in the Irish archaeological landscape, from the circular earthen raths and ringforts that once served as farmsteads in the early medieval period, to prehistoric ditched enclosures whose original purposes remain debated. Whatever form this particular example takes on the ground, it has been deemed significant enough to carry an official monument record, yet almost nothing about it has been made publicly available.

The frustrating truth is that the documentary record for this site remains largely inaccessible at present. Dunneill is a small rural townland in Sligo, a county whose landscape holds a remarkable density of archaeological remains, from the megalithic cemetery at Carrowmore to the countless earthworks and enclosures that dot its drumlin and limestone terrain. An enclosure in this context might be anything from a well-preserved raised ringfort to a barely visible crop-mark visible only from the air. Without further detail, the site sits in an intriguing kind of limbo, officially counted among Ireland's monuments, quietly waiting for fuller documentation.