Carrowkeel megalithic cemetery
This cluster of passage tombs in south County #Sligo, #Ireland was built in the 4th millennium b. Chr, during the #Neolithic era. The monuments are on the Brickleave Hills (An Bricshliabh, 'the speckled hills'), overlooking Lough Arrow.
The Carrowkeel tombs are considered one of the "big four" passage tomb cemeteries in Ireland, along with Carrowmore, Brú na Boínne and Loughcrew.
Fascinating. Has anyone done alignments on them? I do love finding out about these structures.