The actual summit of Benbreen lies on the southern end of a long high rocky quartzite ridge that includes the subsidiary peaks of Benbreen Central Top , and Benbreen North Top ; this gives Benbreen the profile of a high narrow ridge, with Benbreen as the South Top, than a typical peaked mountain. Benbreen Central Top's prominence of , and Benbreen North Top's prominence of , qualify them both as Vandeleur-Lynams on the Irish mountain classification system.