Portal Tombs, Dolmens or Cromlechs as they are sometimes known, mark burial places in a very distinctive way, with huge capstones elevated at an angle and held up by large upright stones creating a chamber below. This chamber is accessed through the two front uprights known as Portal Stones. The monuments we see now would have originally been covered in earthen mounds or cairns, although little evidence for this survives. There are more than 100 dolmens scattered throughout Ireland, in various states of repair.

Local lore attributes the origin of the Dolmen to the joint efforts of a giant and a poor woman. The giant, out walking in the countryside, stumbles over a massive stone which he picks up and throws out of his way. The stone lands on Browne's Hill and lays unnoticed until a poor woman and her children pass by on a stormy night. In her desperation to find shelter for her children, the woman lifts the huge stone and props it up on the other boulders so they can rest there for the night.