In reclaimed pasture in the townland of Camas, County Limerick, the outline of an ancient enclosure survives only as a ghost, invisible at ground level and absent from any historical Ordnance Survey map. It exists in the archaeological record for one reason alone: a single aerial photograph taken on the 3rd of November 1984.

The photograph was not taken for archaeological purposes. It was captured as part of a survey conducted in connection with the Bórd Gáis Éireann Curraghleigh West-Limerick gas pipeline, a large infrastructure project whose route happened to pass over or near features that had left no trace on any map. Aerial photography of this kind can reveal cropmarks or soilmarks, the faint discolouration in vegetation or disturbed ground that betrays buried structures beneath the surface, and it was through this kind of examination that the enclosure was identified from image BGE 1:5000 No. 2507. An enclosure, in the general archaeological sense, typically refers to an area defined by a bank, ditch, or wall, often associated with early settlement, farming, or ritual use, and Ireland contains thousands of them in varying states of preservation. This one sits roughly 165 metres southeast of the townland boundary with Crean and approximately 170 metres southwest of a separately recorded enclosure. Whether it shared any relationship with that neighbouring site is not recorded. By the time Ordnance Survey orthophotos were taken between 2005 and 2012, and by the time Google Earth imagery was examined, no surface trace remained visible at all. The record was compiled by Fiona Rooney and uploaded in March 2021.

A visitor to Camas would find nothing obviously signposted, and the field itself would appear as ordinary reclaimed pasture. The value of this site lies less in what can be observed on the ground and more in what its existence suggests about the density of early activity across what now looks like unremarkable agricultural land. For those with an interest in how the archaeological landscape is built up incrementally, through pipeline surveys, aerial archives, and patient desk-based analysis rather than dramatic excavation, the record of this enclosure is a reasonable illustration of the process. The National Monuments Service database entry, compiled from that 1984 photograph, is the closest thing to a monument that remains.