Grian’s Mound can be found just outside Tuamgraney, from which, according to legend the village it gets its name, Tomb of Gráinne or mound of the Sun.
Grian (Gráinne or Griene) was said to have been extraordinarily beautiful and her beauty was attributed to her being the daughter of a sunbeam and a human father (sometimes identified as a pre Christian King of East Clare).
When her parentage was explained to her, she struggled to accept it and through herself into Lake Graney where she drowned. Her body was carried down the River Graney which feeds into the western side of Lough Derg. She was discovered near Lough Derg by a wooded area now known as Derrygraney ad interred under a mound at Tuamgraney.