The distinction matters, because it tells us something about how people built in this part of Ireland, where stone was always closer to hand than turf. The enclosure measured roughly 26 to 28 metres across internally, and it once looked out over the broad plain through which the Milltown river runs southward towards Dingle Harbour, a commanding position that was clearly chosen with some care.

The site has suffered badly from a peculiarly modern form of erasure: a townland boundary wall cuts directly through it, bisecting the roughly circular enclosure and effectively erasing its southern half. What survives there is little more than a raised platform scattered with large boulders, cleared at some point from the adjacent field and dumped rather than carted away. The northern half fares slightly better, retaining an irregular stony bank up to about 0.7 metres high and 2.3 metres wide. Its identification as a cashel rather than a rath, the earthwork equivalent, rests on both the stony character of that bank and on its name: the site appears as "Caher" on the Fair Plan, the Irish word "cathair" being the standard term for a stone-walled ringfort. A shallow circular hollow about 4.2 metres in diameter marks the former location of a clochán, a small drystone hut of a type common across the Dingle Peninsula. The townland wall curves around the northwestern edge of this hollow in a way that suggests it may have been built partly along the line of the clochán's original wall, and the lower courses of that boundary wall, noticeably neater and built from smaller stones, may actually incorporate the older structure. The site was recorded and described by J. Cuppage in the 1986 Dingle Peninsula archaeological survey.