Dermot and Granias Bed — Glen (leyny By.)

Some 2km S of Ballysadare Bay on the narrow summit of Croaghaun Mountain which commands an extensive outlook in all directions. A SE-facing undifferentiated passage tomb of rectangular outline (L 1.7m; Wth 0.95m) stands in a circular cairn (diam. 7m; H. c. 0.6m). Three stones form the left-hand side of the structure, one stone of a probable original three stands at the right-hand side and it is closed by a backstone. A sillstone stands at the front of the chamber. The site was excavated in 1985 (Bergh 1986, 35; Bergh 1995, 104-5, 225). Cremated human bone was found in the chamber and also a fragment of a poppy-headed antler/bone pin, one piece of chert with wear-marks and fragments of a coarse ware pottery. Five minor deposits of cremated bone were found in the cairn with one of which there were sherds of food vessel type. A hollow scraper made of chert was also found in the cairn. During the excavation two displaced slabs, likely to have been chamber roofstones, were found S and W of the structure. Radiocarbon dating of charcoal from an in situ cremation suggest it was deposited in the interval 5640 to 5490 BC (calendar years). This date is much earlier than would be expected for a passage-tomb so it may be that charcoal already many centuries old somehow became associated with the burial deposit. Charcoal associated with cremated bone in another part of the chamber has been dated to the interval 4675-4460 cal. BC. This date too, according to the excavator, presents 'problems of interpretation'. A prehistoric wall (Wth 3-8m; H c. 1m; L c. 175m) (SL020-182----) of large boulders, which may have been associated with the passage tomb, lies c. 130m to S where it curves around the base of the mountain roughly SE-SW (Bergh 1986, 34-5). (Ó Nualláin 1989, 93-4) The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008 See linked document with details from Seán Ó Nualláin, Survey of the Megalithic Tombs of Ireland. Volume V. County Sligo. (Dublin: Stationery Office, 1989)