in the background
Gabriel Beranger visited the site in 1779 and illustrated some of the monuments. These drawings are a valuable record of the state of Carrowmore at the time, showing some monuments now destroyed or damaged. Many artistic impressions of the monuments through the ages are preserved. Early photographers, such as W.A. Green and R.J. Welch of the Belfast Photographer's club made records just after the turn of the twentieth century. Early unrecorded antiquarian digs disturbed the Carrowmore tombs, such as conducted by local landlord Rodger Walker in the 19th century. Walker kept poor records of his activities, and his excavations were essentially treasure hunts to augment his antiquities collection. Some of the material recovered is now at
Alnwick castle in Northumberland, England The sites were surveyed and numbered by
George Petrie and reported in his 1837
Ordnance Survey Ireland. William Gregory Wood-Martin made the first recorded excavations in the 1880s.
Recent excavations Excavations led by the Swedish archaeologist Göran Burenhult were conducted over two seasonal campaigns, 1977–1982 and 1994–1998. Ten tombs were fully or partially excavated.
Listoghil was excavated in 1996–8. Excavations conducted by the
National Roads Authority for the Inner Relief Road route in Maugheraboy near Sligo – three kilometres from Carrowmore – have shown that a
causewayed enclosure existed at the same time as Carrowmore. Causewayed enclosures are diagnostic of Neolithic activity in Europe.
Excavation results The Carrowmore burial
assemblage is typical of that of the Irish passage tomb tradition. It includes
antler and bone pins with mushroom shaped heads, beads, pendants and stone or clay balls.
Quartz fragments accompanied most of the burials; this material clearly had ritual significance in the passage tomb tradition. The discovery of antler pins and shellfish in the chambers might suggest that the earliest monuments were built by people who followed
hunter-gatherer lifeways; but the presence of small amounts of Carrowkeel ware Neolithic
pottery at these sites is also suggestive of
farming influence. The chambers contained the remains of multiple individuals. Most of the Neolithic burials at Carrowmore appear to have been
cremations. The chambers were re-used intermittently for burial and deposition of artefacts by the people of the
Bronze Age and
Iron Ages. The small Carrowmore dolmens seem not to have been covered by stone
cairns: although such ideas were once popular among
antiquarians, the discovery of "settings" of stone and finds close to the chambers and of
Roman and
Bronze Age artefacts make it unlikely – according to Burenhult – that such cairns ever existed.
Radiocarbon dates Radiocarbon dates from the survey and excavation project in the 1970s, 80s and 90s by Professor Göran Bürenhult generated some controversy at the time, as Burenhult interpreted the dates to indicate that the monuments were erected and used by a
hunter gatherer community. For example, a sample taken from the chamber of Carrowmore 3 was claimed to indicate a date of 5400 BC. Burenhult's theory of Mesolithic tomb builders, first presented in 1982, received critical revision in the quarter century that followed. A source critical review and 25 new radiocarbon dates demonstrated that the Carrowmore monuments are shown to have spanned the era circa 3750 BC to circa 3000 BC. This data set is supported by palaeo-environmental studies in adjacent lakes conducted by Stolze, O'Connell, Ghilardi and others, showing farming activity coincident with or preceding monument use.
Ancient DNA The analysis of ancient DNA derived from human bone shows a web of connections between occupants of monuments of the Irish Passage Tomb Tradition. A male buried in Listoghil, Carrowmore, showed a detectable kin relationship to three others, buried in
Newgrange, Millin Bay and
Carrowkeel. This (combined with stable isotope results indicating a more protein rich diet than that of the general Neolithic population) was suggested to indicate a dynastic elite lineage buried in these prestigious locations in the Neolithic era. ==Discussion==