It is not. The earthwork at Garruragh is a prehistoric or early medieval enclosure, roughly 22 metres across, its perimeter defined by a bank of compacted earth and stone that still stands close to a metre high on its interior face. That it survives at all is partly a matter of luck and partly, perhaps, the enduring folk reluctance to disturb such places.

An enclosure of this kind would typically have served as a defined boundary, possibly around a homestead, an area of agricultural activity, or a space with ceremonial significance. The bank here is substantial in its original form, nearly six and a half metres wide at its base, though the southern arc has been partially levelled over time, likely through generations of agricultural use. What is notably absent is any trace of an outer fosse, the defensive ditch that commonly accompanies earthworks of this type, and no clear entrance survives either. The loose stones scattered around the interior edge have probably migrated there from the bank itself as it has slowly slumped and settled. Thorn trees, long associated in Irish tradition with boundaries and with places set slightly apart from ordinary use, grow intermittently along the top of the bank, and a thorn hedgerow has been planted directly against its outer base to the south and east, as though the field boundary quietly deferred to the older one.

The interior is largely clear, with a gentle downward slope toward the south-west, and the bank profile is most legible when approached from the north or west, where the ground has been least disturbed.