Such features, whether ornamental lakes, ha-has, walled gardens, or carefully positioned stands of trees, were the visible grammar of the eighteenth and nineteenth century Irish estate, communicating wealth, taste, and an understanding of fashionable design to anyone who passed through the demesne gates.

Beyond its classification and location, the specific details of this particular feature, its origins, the family who commissioned it, and the period in which it was made, are not fully documented in available sources. Killeen itself sits within a part of Connacht where Anglo-Irish estate culture left a considerable mark on the landscape, and designed features in this region often reflect the influence of picturesque landscape theory, which encouraged landowners to arrange natural elements into compositions that resembled landscape paintings. Whether this feature was a purely aesthetic addition or served some secondary agricultural or practical function is, for now, an open question.