The site at Shanganagh sits close to a cliff edge, and for most people passing through the surrounding residential streets, there is nothing at ground level to suggest anything of archaeological significance lies underfoot.

The evidence for this enclosure comes almost entirely from a single aerial photograph taken in 1971, referenced in the Irish archaeological survey records as FSI 3, 705/4. In the image, a cropmark is visible: a subtle but legible circular feature roughly fifty metres in diameter. Cropmarks of this kind appear when buried features, such as the ditches or banks of old enclosures, affect the growth of vegetation above them. Ditches tend to retain moisture, producing lusher, darker growth; compacted banks do the opposite. From the air, and particularly in dry summers when the contrast between soil types is most pronounced, these differences can resolve into clear shapes that are otherwise completely invisible at ground level. The enclosure was compiled and documented by archaeologists Geraldine Stout and Padraig Clancy, with a revised record uploaded in April 2018. Beyond the photograph and its rough position near the cliff edge, relatively little detail about the feature's age or function has been established.

The site sits within a housing estate, and the notes describe the immediate area as rough ground, suggesting some undeveloped or scrubby land remains. There is no formal access point or interpretive marker, and visitors should not expect anything visually dramatic. The cliff-edge position, however, gives a sense of why someone might once have chosen this particular spot to define and enclose a space, with open sea or coastal landscape to one side. The best conditions for understanding a site like this are from above, but short of repeating that 1971 flight path, the main reason to seek it out is simply the quiet strangeness of standing on ground that holds a shape you cannot see.