The site appears on the Ordnance Survey six-inch maps as a roughly oval area traced by a broken line, a cartographic convention that already hints at uncertainty. On the ground, the reality is more elusive still: a low earthen bank running from the south around through the west and up to the north, and a scarp continuing from there to the north-east. Beyond that, the enclosure's boundary has vanished entirely into the pasture.

The surviving dimensions, approximately 75 metres east to west and 60 metres north to south, suggest a site of some consequence in its day. Ecclesiastical enclosures of this broadly oval form are among the most characteristic features of early medieval Irish Christianity, serving as the bounded sacred precincts within which a church, burial ground, and sometimes ancillary buildings would have been gathered. At Keelogesbeg, the archaeological record confirms that an ecclesiastical building did once stand within the interior, though nothing of it is visible above ground today. The enclosure and its vanished church together represent a type of site found across Ireland, often preserving the footprint of a community's religious life stretching back over a thousand years, even when the physical fabric has all but dissolved back into the earth.