Visible only from the air, a group of six small ring-ditches shows up as cropmarks, the kind of ghostly outlines that form when buried ditches or disturbed earth cause crops above them to grow differently, betraying the shapes of structures long since levelled or filled in. Ring-ditches are circular or near-circular ditches cut into the ground, and in an Irish context they are often associated with prehistoric burial monuments, the eroded remnants of barrows or enclosures whose above-ground elements have entirely disappeared. This group, however, has not surrendered a straightforward interpretation.

The features were identified through aerial photographs, and two smaller adjacent circles within the group were interpreted by Dr. Gillian Barrett in 2009 as former tree rings rather than archaeological monuments. That detail shifts the whole picture. Neither the first edition of the six-inch Ordnance Survey map from 1839 nor the revised edition of 1900 records anything at this location, which is a significant absence if the features were ancient earthworks of any prominence. What the maps do confirm, at least by implication, is that the land lies within the landscaped demesne of Grange House, and that context raises the possibility that all six ring-ditches, not just the two smaller ones, are the remnants of designed planting schemes or ornamental earthworks rather than prehistoric activity. A country house demesne in the eighteenth or nineteenth century might easily have incorporated circular tree plantings, decorative mounds, or other ground-level features that would leave precisely this kind of cropmark signature.