Enclosures of this kind are among the most common yet least understood features of the Irish countryside. The term covers a broad range of structures, from the circular earthen ringforts of the early medieval period, which served as defended farmsteads, to earlier prehistoric enclosures whose purposes remain debated. Without further detail specific to this site, the category alone is enough to suggest that the ground at Ballyheer has been shaped by human hands at some point across a very long stretch of time.

Mayo is a county whose soils and bogs have preserved evidence of settlement reaching back thousands of years, most famously at the Céide Fields in the north of the county, where a Neolithic field system lies beneath the blanket peat. Enclosures scattered across townlands like Ballyheer form part of that same long continuum of occupation, even where individual sites remain undated and undescribed. The townland name itself, Ballyheer, derives from the Irish and points to a place with its own local identity long before anyone thought to map or classify it.