Travel Guides by Experienced Archaeologists & Historians

Megalithic Sites in Brittany

Brittany has the greatest concentration of prehistoric megalithic sites than any where else in the world where these sites are found. Here in the north-western region of France you can visit the world’s tallest standing menhir (as well as the world’s ‘tallest’ recumbent prehistoric menhir), the largest alignment of standing stones and the world’s biggest cairn, among many hundreds of other sites. The words dolmen and menhir, are Breton words, meaning table stone and tall stone respectively. This guide does not include every megalithic site in Brittany. There is a good selection, over a hundred sites, for your to explore from the best and most well known examples to many others that are just as intriguing.  

Megaliths, Menhirs & Fairies
in North East Brittany

North eastern Brittany is well known for its medieval heritage. Here a handful of towns have retained a quaint Middle Age charm, attracting visitors throughout the year. The region’s much older megalithic sites that should not be overlooked. Not least because one of these sites is one of the largest of its kind. Many, if not all, of these sites are associated with local legends and myths. These may not add to our  understanding of the prehistoric significance of the site, but they certainly add an interesting perspective on the way in which prehistoric sites are perceived through the ages.

Dolmens & Passage Graves, Menhirs & Alignments

Alignements de Lagatjar

On an open stretch of land next to the sea, that has been variously used as a camping site and a football field in the past, is a series of  megalithic alignments. Eighty-seven standing stones are spread over a length of more than 200m. Earlier records of the site suggest there were as many as 600 stones stretching for over 1000 m. A shell midden nearby, with Neolithic ceramics, and a bronze axe recovered from the base of one of menhirs suggest a date of the late Neolithic. A picturesque setting, these megaliths are popular with photographers.

Barnenez Tumulus

At 72 m long, 13 to 28 m wide and 6 m high, the Neolithic Cairn of Barnenez is the world’s largest prehistoric megalithic cairn. The first phase of this structure was around 4,500 year ago, making this one of the oldest structures raised by humans. Besides the many corridor dolmens, some of the megaliths were carved. Visitors are free to walk around the monument, but guided tours allow you to enter the decorated passages. A permanent onsite exhibition outlines the archaeology of the site.

Carnac Stone Alignments

The different series of stone alignments to the north of Carnac are made up of over 3,000 individual standing stones – they are the largest concentration of megaliths in the World. Thought to have been erected between 7,000 and 4,000 years ago, the lines of standing stones cover a distance of about four kilometres in total. Although now fenced off, guided tours of certain sections of the stones are available that enable visitors to walk among the stones. These guided tours are highly recommended.

Gavrinis Passage Tomb

The stone cairn with its decorated passage tomb is not only one of the more spectacular Neolithic sites in the Morbihan area, it is also a great day out for the whole family. Today, because of the rise of sea levels since it was built, the cairn is now on a small island, and the only means of getting there is a short ferry ride from the nearby coastal fishing village of Lamor-Baden. Once on the privately owned island a guided tour enables access to the decorated passage tomb.

La Roche-aux-Fées

Forty-one enormous stones make up a passage, or covered alley, that is 20 metres in length, four times as long as it is wide. Most archaeologists ad enthusiasts alike accept that this is the largest such megalithic in the World. The dolmen is aligned inn such a way that it catches the rising sun at the winter solstice. The land around it is now a well kept parkland that has a Visitors Centre, which is only open during the summer months

La Table-aux-Fées de Saulnières

This dolmen is on gated and locked private property, and so it is inaccessible to the public. There is nothing much to see anyway, other than two very large stones, one of which is over two metres in length. As with all the other megaliths in the area, these two seemingly abandoned stones feature in local folklore and are thought to have been left by the fairies (fées) when they were taking stones from Saulnières to la Roche-aux-Fées.

Megalithic Sites of Locmariaquer

There are a number of megalithic sites in the seaside town of Locmariaquer. The main site open to the public is an intriguing cluster of different megalithic structures. This includes the tumulus of Er-Grah, the Tables des Marchands Cairn, and a enormous broken menhir – which is thought to be the biggest prehistoric stone stele in Europe. Not to be missed is the large, decorated megalith inside the cairn, which is open to the public. The Visitor Center has a very informative short documentary about the megalithic tradition in the area.

Petit Mont Chambered Tomb & WWII Bunker

The cairn of Petit Mont is thought to be one of the most significant chambered tombs in Brittany. Although this is for all intents and purposes a ‘Neolithic site’, from about 6,600 years ago, it is an excellent example of how monuments constructed in one period are re-used in subsequent periods. Artefacts recovered during excavations show that this site was also in use during the Bronze Age and the Gallo-Roman period. But the most obvious evidence of re-use is the typical German bunker built into the cairn in 1943.

Saint-Michel Tumulus

This spectacular tumulus, measuring 125 metres long, 60 metres wide and 10 meters high, and typical for the Carnac area, was constructed during the Neolithic period on what was already a naturally high point on the landscape. From the top of the tumulus there is an expansive view of the surrounding area. This position is clearly something the local community took advantage of in the later medieval period, when a church was constructed above the tumulus.

Sel-de-Bretagne Menhirs

Two standing stones can be visited on the outskirts of the town of Sel-du-Bretagne, and are in a small field that has been fenced off that can be accessed via a footpath from the town square in the village. These two stones are known locally as les menhirs du Champ de la Pierre et du Champ Horel. According to local folklore these two striking stones were abandoned here by the fairies while they were making the nearby Roche-aux-Fées passage tomb.

Related Museums

Carnac Prehistory Museum

The Musée de Préhistoire de Carnac is housed in an old rectory with a collection of over 7,000 artefacts from many of the megalithic sites in the area – one of the richest museums for megalithic culture. A handful of display that deal with the various aspects of everyday life, but the museum has a greater focus on the development and significance of funerary architecture, from the early dolmens to the later, more complex passage tombs. A few galleries explore the Iron Age and Roman  periods.

Maison des Mégaliths, Carnac

Besides serving as an information point and a ticket office for guided tours of the Carnac stone alignments, the Maison des Mégalithes also has a series of exhibitions outlining the history and understanding of the megalithic tradition in southern Brittany. The viewing platform on top of the building is a viewing platform that gives a better view of the alignments than you will get at the fence.

Maison Mégalithes et Landes

A tourist information point and a museum that serves as an introduction to the nearby concentration of megalithic structures nearby. Besides basic information on what there is to see, the centre has an exhibition space and a shop that sells souvenirs and good selection of books. An extensive permanent exhibition explores the lives of the Neolithic communities who made the megalithic monuments; allow between 45 minutes and an hour. Numerous activities for children and adults are hosted, as well as the opportunity to join guided tours. A 7 km self-guided walking tour takes around to 2 hours from the centre.

Interactive Map of Megalithic Sites

Explore the Megaliths of Carnac

Segway Tour

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Sightseeing Train Tour

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Bus Tour

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