Loughcrew is one of the four main passage tomb sites in Ireland (the others are Brú na Bóinne, Carrowkeel and Carrowmore). The site is spread across four hilltops: Carnbane East, Carnbane West, Carrickbrack and Patrickstown. These hills and the tombs themselves are together known as Slieve na Calliagh or Sliabh na Caillí, meaning mountain of the Cailleach, the divine hag of Irish mythology. Legend has it that the monuments were created when a giant hag, striding across the land, dropped her cargo of large stones from her apron.