A site that appears on the 1838 Ordnance Survey six-inch map, that carries a local name, and that archaeologists have formally classified, has nonetheless vanished entirely from ground level. Locally it goes by "The Raheen", a diminutive of the Irish word rath, the term for an earthen ringfort, and that affectionate suffix suggests it was once well known to the people living around it, even if the ground itself no longer shows why.

Ringforts were the most common form of rural settlement in early medieval Ireland, typically consisting of a circular area enclosed by one or more earthen banks and ditches, used as a farmstead and sometimes a place of refuge. Most date from roughly the sixth to the twelfth centuries. The example at Aghowle is modest in scale, with a diameter of approximately 25 metres, and it sits on a south-west facing slope with a pronounced gradient. Whether that slope contributed to the gradual erosion and levelling of whatever banks once defined the enclosure is not recorded, but the site is now described as not visible at ground level. The fact that cartographers in 1838 could still map it clearly enough to mark it suggests the earthworks were legible for some time after whatever farming or land-use changes eventually obscured them.