These features, sometimes called march mounds or mearing mounds, were raised to define the edges of landholdings, parishes, or territories, and they appear across Ireland in various forms and periods. What makes them quietly interesting is how mundane their original purpose was. No burial, no ceremony, no monument to power; simply an agreed point in the ground that told one neighbour where their land ended and another's began.

Boundary mounds of this kind can date from the medieval period onward, though some may have much older origins, occasionally incorporating or mimicking earlier earthworks to lend a sense of permanence and legitimacy to a contested line. The townland name Lissyegan itself contains the Irish element lios, referring to a ringfort or enclosure, which suggests the area has a longer history of human activity and land organisation than the mound alone might indicate. Beyond its classification and location, the specific history of this particular mound remains thinly documented at present.