On gently rolling farmland roughly 200 metres west of Barnavihall House in County Galway, two conjoined enclosures once left enough of a mark on the landscape to be recorded on the third edition of the Ordnance Survey six-inch map in 1933. Today, no visible surface trace survives. The enclosures are, in the most literal sense, gone from the ground, present only in records and in the faint possibility that something beneath the soil still holds their outline.

What the 1933 map captured was a pair of adjoining enclosures of slightly different character. The north-western one was roughly circular, with a diameter of approximately 25 metres. The south-eastern enclosure, somewhat larger, was oval in plan, measuring around 30 metres on its north-east to south-west axis and about 20 metres across. Enclosures of this general type are a recurring feature of the Irish landscape; they range in date from prehistory through the early medieval period and could serve any number of purposes, from settlement and farmstead boundaries to ceremonial or funerary functions. Without excavation, it is rarely possible to assign a precise date or function to a site like this, and here the surface evidence has long since vanished, leaving those questions permanently open. The pairing of a circular and an oval enclosure, conjoined, is itself a detail worth noting: it suggests either a deliberate two-phase arrangement or two distinct activities occupying adjacent spaces.