30Bergh, Stefan. "The Mullaghfarna Enclosures - An Upland "Settlement" in a Passage Tomb Context." School of Geography and Archaeology, NUI Galway, 7 May 2009. Web. 11 Nov. 2013. <http://www.nuigalway.ie/archaeology/Research/Landscape_Archaeology/Bergh_Mullaghfarna_Enclosures/mullaghfarna_enclosures_index.html>.
Bergh conducted a high-resolution survey of the plateau using digital photogrammetry based upon aerial photography, which identified 153 enclosures/hut sites. Then followed interpretative plans of each individual site. "This work is extremely time consuming, as it involves extensive GIS analysis, followed up by detailed work in the field." Small-scale trial excavations in 2003 produced finds of Neolithic and Early Bronze Age dates from a collection of cremated bones, teeth of animals, hazelnut shells, charcoal, small pieces of pottery and small tools, including an Antrim flint knife and some concave scrapers.
An earlier author described the hut-sites: "They have two rings of upright stone slabs with small stones between them, to give a wall some three feet in thickness. They range between 20 and 42 feet in diameter. Since only the foundations remain it is impossible to speculate about the original appearance of these structures. None appear to have doorways, and most are clearly too large to have had corbelled roofs. Thatch is unthinkable at this altitude and in so exposed a position, though wood, from the abundant forests which once crept up to the foot of the mountain, could have provided roofing materials. The structures were probably not actual dwellings, however, but wind-shields and protective enclosures against wild animals within which wooden huts were built." (St. Joseph, J.K.S., and E.R. Norman. The Early Development of Irish Society, the Evidence of Aerial Photography. London: Cambridge UP, 1969.)