A cashel is a type of early medieval stone ringfort, typically enclosing a farmstead or high-status residence within a circular or subcircular dry-stone wall. At Garracloon, that wall still measures over a metre wide in places, and traces of both inner and outer stone facing survive, but the entrance has been lost, and the interior is uneven ground, its original features largely illegible.

The monument appears on Ordnance Survey six-inch maps from both 1839 and 1916, labelled by name on both editions, which suggests it was a recognisable landmark across more than a century of mapping. The antiquarian Thomas Johnson Westropp visited and recorded it in 1911, noting what he called the "slight remains" while still remarking on its prominent position. His observation was apt on both counts. The cashel measures roughly 26 metres north to south and 30 metres east to west, placing it at a respectable scale among similar monuments, yet it has clearly suffered significant collapse over time. A later drystone wall, the kind built to divide agricultural land, has been constructed directly over the cashel wall along the south-east to south-west arc, cannibalising the earlier structure in the way that was common when ready-cut stone lay conveniently at hand. Some stones arranged within the south-east quadrant may be the remnants of an internal feature, perhaps a structure that once stood inside the enclosure, though their original purpose is uncertain. The cashel sits within a large surrounding field system, suggesting this elevated limestone shelf was organised and worked land across a considerable period.