Carrowmore (, 'the great quarter') is a large group of
megalithic
A megalith is a large Rock (geology), stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones. More than 35,000 megalithic structures have been identified across Europe, ranging ...
monuments on the
Coolera Peninsula to the west of
Sligo
Sligo ( ; , meaning 'abounding in shells') is a coastal seaport and the county town of County Sligo, Ireland, within the western province of Connacht. With a population of 20,608 in 2022, it is the county's largest urban centre (constituting 2 ...
, Ireland. They were built in the
4th millennium BC
File:4th millennium BC montage.jpg, 400x400px, From top left clockwise: The Temple of Ġgantija, one of the oldest freestanding structures in the world; Warka Vase; Bronocice pot with one of the earliest known depictions of a wheeled vehicle; Kish ...
, during the
Neolithic
The Neolithic or New Stone Age (from Ancient Greek, Greek 'new' and 'stone') is an archaeological period, the final division of the Stone Age in Mesopotamia, Asia, Europe and Africa (c. 10,000 BCE to c. 2,000 BCE). It saw the Neolithic Revo ...
(New Stone Age). There are 30 surviving tombs with another 25 which have been destroyed since 1800, making Carrowmore one of the largest clusters of megalithic tombs in Ireland, and one of the 'big four' along with
Carrowkeel,
Loughcrew and
Brú na Bóinne. Carrowmore is the heart of an ancient
ritual landscape which is dominated by the mountain of
Knocknarea to the west. It is a protected
National Monument.
Location

Placed on a small plateau at an altitude of between 36.5 and 59 metres above sea level Carrowmore is the focal point of a prehistoric
ritual landscape which is dominated by the mountain of
Knocknarea to the west with the great cairn of
Miosgán Médhbh on top. To the east, in Carns townland, two large cairns overlook
Lough Gill
Lough Gill () is a freshwater lough (lake) mainly situated in County Sligo, but partly in County Leitrim, in Republic of Ireland, Ireland. Lough Gill provides the setting for William Butler Yeats' poem "The Lake Isle of Innisfree".
Location a ...
, and along the eastern boundary of the peninsula the Ballygawley Mountains have four passage tombs at their peaks.
Description

Thirty monuments survive in Carrowmore today. There may have been more monuments in the complex originally, but some fell victim to quarrying and field clearance during the 18th, 19th and early 20th centuries. The complex is about one kilometre north–south and 600 metres east–west. Most of the sites are "satellite tombs" which surround the largest monument, placed on the high point of the plateau, the
cairn
A cairn is a human-made pile (or stack) of stones raised for a purpose, usually as a marker or as a burial mound. The word ''cairn'' comes from the (plural ).
Cairns have been and are used for a broad variety of purposes. In prehistory, t ...
(now restored) called
Listoghil.
Because of the clustering of the monuments, certain morphological features presented by the tombs, and the
assemblage of material found within some of the monuments, Carrowmore – like
Newgrange,
Loughcrew and
Carrowkeel – is classified by archaeologists as being part of the Irish
Passage Tomb
Passage, The Passage or Le Passage may refer to:
Arts and entertainment Films
* Passage (2008 film), ''Passage'' (2008 film), a documentary about Arctic explorers
* Passage (2009 film), ''Passage'' (2009 film), a short movie about three sisters
* ...
Tradition. However, in some respects the Carrowmore sites are atypical passage tombs. For example, none of the tombs have lintel-covered, tunnel-like, passages that are a feature of most Irish passage tombs, and only one site (Tomb 51, Listoghil) possesses a cairn.
Satellite tombs
The monuments (in their original state) consisted of a central dolmen-like megalith with 5 upright
orthostats bearing a roughly conical capstone on top, enclosing a small
pentagonal
burial chamber. These were each enclosed by a boulder circle of 12 to 15 metres in diameter. The boulder circles contain 30 to 40 boulders, usually of
gneiss, the material of choice for the tombs. Sometimes a second, inner boulder circle is also present. Entrance stones (or passage stones, crude double rows of standing stones) extend from the central feature, showing the intended orientation of the dolmens. They are not oriented to points of the compass but generally face towards the area of the central cairn. In four examples, monuments are situated in pairs.
Each monument was built on a small level platform of earth and stone. This is one of the secrets of the dolmens' longevity; a well-executed stone packing surrounded the base of the upright stones, locking them in place. One of the satellite tombs, Tomb 27, has a
cruciform passage tomb plan, a feature seen in the chambers of later passage tombs like
Newgrange or
Carrowkeel. The roof – now gone – may have been of stone slabs or
corbelled.
Listoghil or Tomb 51
Listoghil, which was erected c. 3500 BC, is 34 metres in diameter and has a distinctive box-like chamber. The leading edge of the covering stone over the entrance bears marks which may represent the only megalithic art so far found at Carrowmore. Three large boulders were found beside the central chamber and under the cairn; these could be the remains of a destroyed passage or of a megalithic construction predating the cairn. As many of the satellite tombs face the central area, the location of Tomb 51 appears to have been the focal point around which the cemetery developed. This monument was found to contain unburned bones as well as cremations.
Research history
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
Antlers are extensions of an animal's skull found in members of the Cervidae (deer) Family (biology), family. Antlers are a single structure composed of bone, cartilage, fibrous tissue, skin, nerves, and blood vessels. They are generally fo ...
and bone pins with mushroom shaped heads, beads, pendants and stone or clay balls.
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The Atom, atoms are linked in a continuous framework of SiO4 silicon–oxygen Tetrahedral molecular geometry, tetrahedra, with each oxygen being shared between two tet ...
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
A hunter-gatherer or forager is a human living in a community, or according to an ancestrally derived Lifestyle, lifestyle, in which most or all food is obtained by foraging, that is, by gathering food from local naturally occurring sources, esp ...
lifeways; but the presence of small amounts of Carrowkeel ware Neolithic
pottery
Pottery is the process and the products of forming vessels and other objects with clay and other raw materials, which are fired at high temperatures to give them a hard and durable form. The place where such wares are made by a ''potter'' is al ...
at these sites is also suggestive of
farming
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created ...
influence.
The chambers contained the remains of multiple individuals. Most of the Neolithic burials at Carrowmore appear to have been
cremation
Cremation is a method of Disposal of human corpses, final disposition of a corpse through Combustion, burning.
Cremation may serve as a funeral or post-funeral rite and as an alternative to burial. In some countries, including India, Nepal, and ...
s. The chambers were re-used intermittently for burial and deposition of artefacts by the people of the
Bronze Age
The Bronze Age () was a historical period characterised principally by the use of bronze tools and the development of complex urban societies, as well as the adoption of writing in some areas. The Bronze Age is the middle principal period of ...
and
Iron Age
The Iron Age () is the final epoch of the three historical Metal Ages, after the Chalcolithic and Bronze Age. It has also been considered as the final age of the three-age division starting with prehistory (before recorded history) and progre ...
s.
The small Carrowmore dolmens seem not to have been covered by stone
cairn
A cairn is a human-made pile (or stack) of stones raised for a purpose, usually as a marker or as a burial mound. The word ''cairn'' comes from the (plural ).
Cairns have been and are used for a broad variety of purposes. In prehistory, t ...
s: although such ideas were once popular among
antiquarian
An antiquarian or antiquary () is an aficionado or student of antiquities or things of the past. More specifically, the term is used for those who study history with particular attention to ancient artefacts, archaeological and historic si ...
s, the discovery of "settings" of stone and finds close to the chambers and of
Roman and
Bronze Age
The Bronze Age () was a historical period characterised principally by the use of bronze tools and the development of complex urban societies, as well as the adoption of writing in some areas. The Bronze Age is the middle principal period of ...
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

Research at Carrowmore has helped clarify the chronology of the development of the passage tomb tradition in Ireland. Although some important Irish passage tomb sites are not dated, and early dates have been obtained elsewhere it is possible that Carrowmore represents some of the earliest passage tombs constructed in Ireland.
Ancient genetics now indicate a large scale dispersal of farming communities whose origin was in
Anatolia
Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...
. The role of megaliths as monuments and foci of ceremony and celebration, as well as markers on the landscape is emphasised by archaeologists such as
Richard Bradley; but they were also memorials to particular lineages and possibly individuals from elite groups.
Carrowmore represents a foundation point and a centre point in a Neolithic landscape. The building of large cairns such as Listoghil or
Miosgán Médhbh on
Knocknarea may represent a later phase of megalith-building of greater scale and ambition than the earliest passage tombs. The area of the Cúil Irra peninsula and its hinterlands is dotted with such tombs, often on hilltops, which inspired Stefan Bergh to style it the "Landscape of the Monuments".
Dump Crisis
Carrowmore was the subject of an extended legal battle during the 1980s when in 1983 Sligo County Council sought to place a municipal
landfill
A landfill is a site for the disposal of waste materials. It is the oldest and most common form of waste disposal, although the systematic burial of waste with daily, intermediate and final covers only began in the 1940s. In the past, waste was ...
dump on a quarry site about 100 yards from part of the complex. The council's decision was contested by five local residents in the High Court, in Dublin in late 1983, and the High Court ruled that the County Council could proceed with its plans, on certain conditions. The case was appealed to the Supreme Court which ruled against the Council in 1989.
A notable feature of the judgment was that it marked the first explicit legal recognition of the idea of an architectural landscape, extending the legal protection of a national monument to include the surrounding area.
Visitor centre
In 1989–90 the State purchased approximately , on which stood a number of monuments and a small cottage. The cottage was developed for use as a basic visitor interpretative facility run by the
Office of Public Works
The Office of Public Works (OPW) (; legally the Commissioners of Public Works in Ireland) is a major Government of Ireland, Irish Government agency, which manages most of the Irish State's property portfolio, including hundreds of owned and ren ...
, this development marked the first stage in developing the Carrowmore archaeological complex for public access. Later land purchases means that most of the site is now under public ownership.
The small farmhouse is close to the
R292 road, approximately east of Ransboro crossroads. It houses an exhibition and, from March to the end of October, provides both guided tours and multi-lingual self-guide options for the Carrowmore megaliths. Most of the tombs can be accessed from there.
References
Sources
*''Tombs for Hunters'', Burenhult, G, British Archaeology 82, 2005, pp22–27.
*''Landscape of the Monuments'', Bergh, S. University of Stockholm, 1995.
*''Unpicking the Chronology of Carrowmore. Bergh, S & Hensey, R. Oxford Journal of Archaeology 32(4) 343–366, 2013.
*''Altering the Earth. The Origins of Monuments in Britain and Continental Europe'', Bradley, R. Edinburgh: Society of Antiquaries of Scotland, 1993.
*''Monumental Beginnings'', Danagher, E. Dublin: National Roads Authority, 2007.
External links
Carrowmore.com– detailed information on the Carrowmore sites
Carrowmore Megalithic Cemetery– official site at Heritage Ireland
Carrowmore Megalithic Cemetery– official Facebook page.
{{authority control
Archaeological sites in County Sligo
Cemeteries in the Republic of Ireland
Buildings and structures completed in the 4th millennium BC
Megalithic monuments in Ireland
National monuments in County Sligo
Museums in County Sligo
Archaeological museums in the Republic of Ireland