No earthen bank survives, no ditch, no scatter of stone to suggest that anything once stood here. The site exists now almost entirely as a cartographic memory, preserved in the 1838 edition of the Ordnance Survey six-inch map, where surveyors recorded a circular enclosure roughly thirty metres across. That map notation is, at this point, the most tangible thing about it.

A cashel, in Irish archaeological terms, is a ringfort built from stone rather than earth and timber, a form of enclosed farmstead typical of the early medieval period in Ireland, broadly from around the fifth to the twelfth centuries. Thousands of them survive across the country in varying states of preservation. This one does not. The land around Crannagh has been reclaimed for agriculture at some point after that 1838 survey, a process that in many parts of Ireland involved clearing, levelling, and draining ground that had previously been left rough. In this case, whatever remained of the enclosure was lost in that work. The OS surveyors who mapped it in the 1830s were, without knowing it, making the last record of something about to disappear.