What makes this site quietly arresting is not the monument in isolation but the density of the landscape around it: the rath sits within the remains of a disused clachan, the Irish term for an informal cluster of rural dwellings, and it is surrounded on all sides by the fossilised outlines of small fields and allotments whose grass-covered walls radiate outward from the bank itself. The whole ensemble belongs to an extensive multiperiod field system, meaning the landscape has been shaped, reshaped, and then abandoned across many centuries, leaving traces that sit on top of one another without quite resolving into a single story.

A rath is an early medieval enclosed settlement, typically defined by one or more earthen banks and ditches, and used as a farmstead by a family of some local standing. The example at Ballyinsheen Beg is a possible rath, its status qualified because the evidence has been substantially disturbed. The subcircular enclosure measures roughly 26.9 metres east to west and 22.8 metres north to south internally, defined by a bank that has largely collapsed and is now grass-covered earth and stone, between 0.25 metres high on the interior and around a metre on the exterior, where the outer face remains noticeably steep. There are many gaps in the bank, and a modern stone wall has been built along part of its perimeter, running from the west-southwest around to the north-northwest. Inside, the ground slopes gently to the southeast and rises slightly at the centre, where several field-clearance cairns, small mounds of stone gathered from the surrounding land, now sit. A ruined house lies approximately 28 metres to the south-southeast, and a second enclosure of a different type, a cashel, which is a stone-walled ringfort rather than an earthen one, stands around 57 metres to the north-northeast, suggesting that this corner of the Burren was once considerably more populated than its present quietness would suggest.