The category alone, an enclosure, points to something ancient. These features, typically circular or oval boundaries defined by earthen banks, ditches, or stone walls, appear across Ireland in contexts ranging from early medieval farmsteads to prehistoric ritual sites. Without knowing which type this one is, or how well-preserved it remains, it occupies a curious position, acknowledged but not yet described.

Rusheen is a small townland, and like many in Mayo it carries its history close to the surface, literally in some cases, where centuries of agricultural use, abandonment, and bog growth have left earlier landscapes partially intact beneath the ground. The name Rusheen derives from the Irish roisín, meaning a small wooded promontory or a small wood, which hints at the kind of sheltered, marginal ground where early enclosures were often sited. Beyond the monument's existence and its townland location, the details that would normally fill out a picture, who built it, when, for what purpose, how large, how intact, remain unrecorded in any publicly accessible form.