What is "carracastle"

Carracastle is a small, rural Roman Catholic parish in Counties Mayo, Roscommon and bordering County Sligo in Ireland. It contains part of the civil parish is Kilbeagh, which also contains Charlestown Catholic parish. It is roughly halfway between the Mayo town of Charlestown and the Roscommon town of Ballaghaderreen. The parish is made up of the main parish of Carracastle and the half parish of Rooskey. There is a Catholic church in each parish and a school in Carracastle (a school in Rooskey closed down in June 2009).