Designed landscape features were a common ambition of the landed gentry from the seventeenth century onward, encompassing ornamental lakes, ha-has (the sunken boundary walls that kept livestock out of view without interrupting the sightline), walled gardens, avenue plantings, and follies of various kinds. That something of this nature was noted at Ballydonnellan suggests a property of some consequence once occupied or shaped this corner of east Galway, even if the records that might name its creators have not survived in usable form. Without further detail it would be speculation to say more about the feature itself.