Rathcroghan, which is said to mean Fort of Cruachan, is a complex of archaeological sites containing about 60 different national monuments. These include barrows, a holy well, standing stones and a supposedly haunted cave. It has been pointed out that this complex is spread out over several townlands (a geographical division of land used in Ireland) around the village of Tulsk in County Roscommon, Ireland. Rathcroghan has been regarded as an important site in the history and mythology of Ireland. Rathcroghan has been identified by some as the site of Cruachan, the traditional capital of the Connachta (aloso Connacht, Connaught), home of the prehistoric and early historic rulers of the western territory. According to one source, Cruachan is derived from
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