The site has since been destroyed so thoroughly that even pinning down exactly what was lost is a matter of reading between the lines of old notes.

The place was recorded under its Irish name, Lisheenacarriga, meaning "little fort of the rock," and it sat within a ringfort, the circular enclosed farmsteads that dot the Irish countryside in their thousands and date broadly to the early medieval period. Within or beneath many ringforts there are souterrains, stone-lined underground passages or chambers whose precise function is still debated, though storage and refuge are the most commonly accepted explanations. At Carrigcleena More, the OS Field Books described something unusually substantial: a cave said to hold three large apartments, suggesting a more elaborate structure than the simple passage that the word souterrain might imply. By 1934, when a researcher named Bowman visited or consulted records of the site, the entrance had already been closed. The ringfort itself had been levelled by that point. Quarrying subsequently removed whatever remained of both the enclosure and the underground chambers beneath it.