Rathcroghan mound is a wide circular drum shaped mound about 10 ft high with a small ringbarrow just visible on the top.  Rathcroghan is also made famous in the epic tale of the Tain Bo Cuilagne.  Queen Maeve as Queen of Connaught and her palace as the mound of Rathcroghan.

The epic tale of the Tain Bo Cuilagne or The Cattle Raid of Cooley, this is probably one of the greatest tales in the history of Ireland.  It all began one night at Rathcroghan, Tulsk, Co. Roscommon, where Queen Maeve and her husband Achill lived in a splendid residence, wealth and extensive.  From here they quarrelled over who had brought the most wealth to their union. argued over who had the most wealth.  They were equal in wealth, but for one thing she didn't have. It was a fierce bull called the white bull of Connacht and it belonged to Ailill.