Others exist primarily as a shadow on a satellite image, a slight irregularity in field boundaries that only becomes legible when viewed from above. The sub-rectangular enclosure at Deerpark, Co. Cork belongs to the second category. Detected from an aerial photograph rather than ground survey, it sits to the southeast of Killawillin graveyard, a spatial relationship that tells its own quiet story.

Ecclesiastical enclosures are roughly circular or rectangular boundaries, often formed by a raised bank or fosse, that once defined the sacred precinct of an early medieval church site. They frequently survive long after the buildings themselves have vanished, preserved as crop marks, soil discolourations, or subtle humps in the land. The proximity of this enclosure to Killawillin graveyard is significant: in Ireland, active graveyards often occupy the footprint of much older monastic or church settlements, and an enclosure nearby may represent an outer boundary of that original sacred space, or a related subsidiary precinct. The feature was identified and reported by Eamonn Cotter in September 2013, making it a relatively recent addition to the known archaeological record for the area.