What makes it linger in the mind is not its scale but the layering of activity compressed into one modest enclosure: an early medieval farmstead, a hidden underground passage, the ghost of old cultivation, and the ruin of a much later cottage all occupying the same ground.

This is a rath, the Irish term for a ringfort, the most common type of early medieval settlement in the Irish landscape. Thousands were built between roughly the sixth and tenth centuries, typically as enclosed farmsteads for a single family and their livestock, defined by one or more earthen banks and ditches. The Cloghmacow example measures approximately 38 metres east to west and 35 metres north to south. Its enclosing bank and external fosse, a ditch dug to increase the effective height of the bank beside it, survive around the northern, eastern, and western arcs, though both are heavily overgrown to the east and a row of Scots pine has been planted into the fosse to the west. A gap in the bank to the south-west likely marks the original entrance. Inside the enclosure, a souterrain has been recorded: a souterrain is a stone-lined underground passage or chamber, found in many ringforts and thought to have served for storage or as a refuge. Faint cultivation ridges survive in the south-eastern quadrant, traces of agricultural use that may predate or postdate the fort's main period of occupation. A ruined stone cottage to the south adds another layer, a reminder that this landscape has been farmed continuously across many centuries.

The enclosure is surrounded by field boundaries that skirt it to the north-west and north-east, meaning the modern agricultural layout has accommodated rather than erased it. The bank and its associated features are most legible on the northern and western sides, where vegetation has not yet taken full hold.