When crops grow unevenly over buried ditches and pits, they betray the outlines of whatever lay beneath the soil long before the current field boundaries were drawn, a phenomenon known as a cropmark. It was through aerial photography, credited to Dr D.D.C. Pochin Mould, that a substantial and organised field system was identified here, one whose alignment bears no relation to the existing townland boundary to the west, suggesting it belongs to a quite different era of land use.

The system spreads across at least three adjacent fields and shows a striking degree of internal organisation. In the northernmost area, three or possibly four parallel fosses, that is, shallow ditches, run on a north-west to south-east axis, with shorter cross-ditches connecting them to form roughly rectangular divisions measuring approximately 60 metres by 40 metres. The middle field presents a more irregular picture, with a curving line running south-west to north-east and shorter cross-lines delineating small, uneven enclosures, along with possible pits visible on drier ground to the west. The southernmost field returns to regularity, its pattern closely mirroring the northern one. Running along the western edge of the system, a possible trackway defined by parallel fosses follows the same general alignment before veering slightly westward, and may connect back into the middle field as part of the same network. Notably, the whole system appears to respect a levelled sub-circular enclosure on its southern edge, skirting around it rather than cutting across it, which implies a degree of deliberate spatial awareness in how this landscape was organised and used.