That is, more or less, the sum of what is publicly known about it. The name Illaun derives from the Irish word for a small island, or a patch of slightly elevated ground that behaves like one, and the fact that an enclosure was considered worth recording here suggests at minimum that something deliberate and human-made once defined this particular piece of ground. Enclosures in the Irish archaeological record cover a wide range: they include the circular earthen raths and ringforts associated with early medieval farming settlements, the stone-walled cashels of the west of Ireland, and more ambiguous boundaries whose date and purpose remain unresolved. Which category this one falls into is, at present, an open question.

The record exists, the monument has been assigned a place in the national inventory, but the details that would bring it into focus, its dimensions, its construction, any finds or features noted during survey, have not yet made their way into the public domain. County Clare has a dense and varied archaeological landscape, from the limestone pavements of the Burren with their early Christian remains to the river valleys and coastal margins where settlement evidence of many periods survives in various states of preservation. An enclosure in a townland named for its island-like character fits quietly into that broader pattern, suggesting perhaps a site defined as much by its topography as by any built boundary.