Carrowkeel is set on high ground above Lough Arrow in the Bricklieve Mountains. There are fourteen passage tombs in the central core of the complex at Carrowkeel; some can be entered by crawling through a narrow passage. The entrances and passages of the monuments are often oriented North West, towards the area of Cúil Irra, Knocknarea and Carrowmore. Twelve more passage tombs are located within a radius of 6km, sometimes at elevated locations such as the Keshcorran group, or Suigh Lughaidh. One of these outliers is situated at the north end of Lough Arrow and NW Carrowkeel; the giant passage tomb, Heapstown Cairn. This is part of the legendary Moytura, a site of battles between the Tuatha Dé Danann, the ancient gods of Ireland, and the demonic Fomorians.