The enclosure measures roughly fifty metres east to west and forty metres north to south, dimensions that emerge only intermittently as the stonework surfaces through the vegetation, like a sentence read one word at a time.

Enclosures of this kind are among the most common and least understood archaeological features in the Irish countryside. Typically formed by a drystone wall or an earthen bank and ditch, they could have served any number of purposes depending on their period and context: settlement, agriculture, the penning of livestock, or ritual use. Without excavation, most remain stubbornly undated. What can be said of this one is simply that someone, at some point, went to the considerable effort of gathering and laying enough stone to describe an oval nearly the size of half a football pitch in what is now scrubland on the Galway plain.