Rathcroghan

Rathcroghan (Irish: Ráth Cruachan, meaning "fort of Cruachan") is a complex of archaeological sites near Tulsk in County Roscommon, Ireland. It is identified as the site of Cruachan, the traditional capital of the Connachta, a term used to describe the prehistoric and early historic rulers of the western territory.The Rathcroghan Complex (Crúachan Aí) is a unique archaeological landscape with many references found in early Irish medieval manuscripts.

Located on the plains of Connacht (Mag nAí/Machaire Connacht), Rathcroghan is one of the six Royal Sites of Ireland. This landscape which extends over six square kilometres, consists of 240 plus archaeological sites, sixty of which are protected national monuments.

These monuments range from the Neolithic (4000 - 2500 BC), through the Bronze (2500 - 500 BC) and Iron Age (500 BC - 400 AD), to the early medieval period and beyond. These monuments include burial mounds, ringforts and medieval field boundaries amongst others. The most fascinating of these are the multi period Rathcroghan Mound, the mysterious cave of Oweynagat, the Mucklaghs - a spectacular set of linear earthworks, as well as the Carns medieval complex.