It is believed that the site is named after the goddess Crobh Dearg and was originally used for Beltane rituals and festivities.

To the northeast of the hills is an ancient circular stone enclosure called Cahercrovdarrig (Cathair Crobh Dearg) or 'The City'.

Drob Derg (modern spelling: Crobh Dearg; pronounced crove derg) is a Celtic goddess, in Scottish, Irish and Welsh mythology.