These mounds, raised earthworks used to mark the edges of land holdings, parishes, or administrative divisions, were once a practical and widely understood feature of the Irish countryside. Over centuries, as written deeds and mapped boundaries replaced the need for physical markers, many fell out of common knowledge, leaving them as unexplained lumps in fields, occasionally ploughed flat or absorbed into hedgerows.

Boundary mounds of this kind can date from the early medieval period onward, and their placement was rarely arbitrary. They often followed natural features, crossroads, or older sacred sites, and in some cases the act of raising or maintaining them carried a communal or legal significance. The name Eglish derives from the Irish eaglais, meaning church, suggesting the area had early ecclesiastical associations, which sometimes influenced how land was divided and marked in the surrounding territory. Without more detailed records specific to this example, the precise period of its construction and the boundary it once defined remain open questions.