Doomore Cairn is situated in the Ox Mountains at an altitude of 272 meters above sea level overlooking Ballisodare Bay, Knocknarea and Benbulben. Aside from anything else, this monument is worth visiting for the magnificent panaromas it affords of the Sligo Mountains. Having said that, it's not too easy to get to.
Parking at the picnic spot where the Coolaney road crosses the Ox Mts from Beltra, follow one of the paths west through the forestry plantations. There are many stone walls, enclosures, and cottages and other interesting things within the wood, which could date from a combination of several ages, and reminded me of the Aran Islands. It is also said to be a great place to gather wild edible mushrooms.
From the woods, its a steep climb through rough bog and bracken. The cairn is located on the east side of the summit, and is composed of locally quarried gneiss. There is plenty of white quartz in the Ox Mountains, and several chunks remain on the cairn. There is a concrete Ordinance Survey pillar on the cairn, and a large mounded pile of stones on the west side. Large boulders and slabs on the side facing Knocknarea may indicate the presence of a chamber. The cairn is about 25 meters in diameter.
This monument is a focal point for astronomical observations made from Carrowkeel. Back in the neolithic, an observer at Cairn G would see the summer solstice sun set over this cairn. Due to the obliquity of the elliptic, or the wobble in the earth's orbit, the sun has shifted west by 1.5 degrees or 3 solar diameters. The reverse also applies: an observer standing on Doomore cairn will see the winter solstice sun rise over the ridge of Carrowkeel.
A medieval legend tells that a member of the local O'Hara family was killed by a savage beast, the Dobhercu, and that his body was buried within the cairn. Local mythological expert Michael Quirke believes that the Dobhercu was a giant otter, a water dog.