The positioning is deliberate and slightly unsettling once you notice it: whoever built this enclosure chose a spot with broad views in the directions that mattered, while accepting that a ridge of higher ground to the south and south-east would always overlook them in return. That trade-off, surveillance offered and surveillance accepted, is one of the quiet puzzles the site leaves behind.

The earthwork is a rath, the Irish term for a roughly circular or oval ringfort, the most common monument type in the Irish landscape. Constructed during the early medieval period, raths typically served as enclosed farmsteads, their banks and ditches marking out a household's territory as much as defending it. The Fahee example is oval in plan, measuring about 33 metres on its longer axis and 26 metres across. What makes it a little more complex than the standard single-bank type is its double enclosure: an inner earthen bank is accompanied by a flat-bottomed fosse, a defensive ditch, and then a second outer bank on the north-north-west side. The inner bank survives to an external height of between 0.8 and 1.3 metres at its best-preserved point, while a steep drop of around two metres marks the south-east to south-south-east edge, where the natural slope does some of the defensive work. The level interior has been cut through by a later field bank running roughly north-west to south-east, and a gap on the east-north-east side is probably a cattle gap added in more recent agricultural use, a small reminder that working farmland has a habit of absorbing older boundaries into its own logic. The site appears on the first edition Ordnance Survey six-inch map of 1840 and again on the later Cassini edition of 1916, where it is marked with hachuring, the cartographic shorthand for earthwork relief.