It measures roughly 30 metres on its longest axis and 24 metres across, built from earth and stone, with scattered rocks and boulders concentrated towards its western side and faint traces of a low bank still readable along the south. The category assigned to it, designed landscape feature, is itself a kind of admission that its original purpose has blurred beyond easy recovery.

Ordnance Survey records offer two overlapping clues. The OS Fair Plan marks the spot with the annotation 'G.P.', meaning gravel pit, while the more detailed 1:2500 survey carried out between 1912 and 1916 records it instead as an irregular enclosed tree plantation. The most plausible reading is that a working quarry or gravel extraction site was, at some point, softened into something more ornamental, planted with trees and shaped into a mound that would read as a landscape accent rather than an industrial scar. Estate owners across Ireland regularly undertook this kind of reclamation during the nineteenth and early twentieth centuries, converting exhausted quarries or spoil heaps into follies, wooded knolls, or eye-catchers within a designed demesne. The trees that once enclosed this mound have since been largely removed, leaving the earthwork exposed again, stripped of the layer of meaning that planting had added to it.