Dolmen sous tumulus de Kergonfalz
MonumentHidden Treasure
Dolmen sous tumulus de Kergonfalz, located in Bignan (Département 56), is a historic monument. The monument is currently closed to visitors.
Key facts
- Type
- autre
- Location
- Bignan, Département 56, Bretagne
- Visit
- Closed to visitors
- GPS
- 47.8779, -2.7945
- Mérimée Reference
- PA00091044
Buried under its mantle of earth for over 5,000 years, the Kergonfalz dolmen in Bignan is one of the most discreet and enigmatic witnesses to Neolithic Morbihan.
History
In the heart of Morbihan, in the commune of Bignan, stands - or rather hides - the dolmen of Kergonfalz, a Neolithic funerary monument covered by a tumulus that gives it a gentle, organic silhouette in the Breton bocage landscape. Far from the tourist hustle and bustle of Carnac or Locmariaquer, this unspoilt site offers an intimate, almost clandestine encounter with the megalith builders who shaped this land over five millennia ago. What makes Kergonfalz particularly precious is precisely this integrity: the tumulus enveloping the burial chamber has not been torn open by haphazard excavations, giving it a rare architectural and symbolic coherence. The mound of earth and stones, planted over the centuries, forms a discreet hillock whose rounded shape barely betrays the imposing edifice of granite slabs that it protects. The experience of visiting the site is one of contemplation and deduction. You walk around the tumulus, making out the outlines of the orthostats under the vegetation, imagining the funeral procession and the collective rituals that animated this place when it was the centre of the spiritual life of a Neolithic farming community. A field telescope is all it takes to see the carefully calculated orientation of the access corridor, probably aligned with a solar or lunar event. The surrounding area, typical of the Morbihan countryside, is a mixture of dense oak woods and meadows dotted with hedgerows. This damp, undulating land is a reminder that the Neolithic populations of the Morbihan chose the sites of their monuments with care, often on gentle ridgelines or near springs. Kergonfalz is a perfect example of this thoughtful siting.
Architecture
The dolmen at Kergonfalz belong to the type of covered walkways or corridor dolmens, an architectural form characteristic of the Neolithic period in Morbihan. The internal structure is made up of large slabs standing vertically - the orthostates - forming the side walls of an elongated burial chamber, topped by horizontal cover slabs known as tables. Local granite, the dominant rock in the subsoil of central Morbihan, is the only material used in the building: its bluish-grey blocks, with rough surfaces carved by thousands of years of use, resist erosion admirably and explain the exceptional longevity of these monuments. The burial mound enveloping the megalithic chamber is probably around twenty metres long, with a preserved height of around two to three metres, dimensions that are consistent with contemporary monuments in the area. This mass of compacted earth and stone protects the load-bearing structure of the slabs, while at the same time providing a visible monumental signpost in the landscape. The entrance to the corridor, oriented along an axis probably linked to the seasonal solar cycles - a recurring practice in Armorican megalithy - allowed light to enter the chamber during specific astronomical events. The architectural ensemble reflects a remarkable technical mastery: the balance of the roof slabs, resting on carefully adjusted orthostats with no binding agent, has withstood more than five millennia of freezing, thawing and water variations. Some of the slabs may show engravings or traces of polishing associated with ritual practices, features frequently observed on contemporary monuments in the Pontivy region and inland Vannetais.
Related Figures
Les bâtisseurs néolithiques anonymes du Morbihan central (vers 3500-3000 av. J.-C.), architectes collectifs du monumentProsper Mérimée, inspecteur des monuments historiques, dont l'action nationale contribua à la prise de conscience patrimoniale sur les mégalithes bretonsJames Miln, archéologue écossais installé à Carnac au XIXe siècle, pionnier de l'inventaire systématique des monuments mégalithiques morbihannaisZacharie Le Rouzic, archéologue vannetais (1864-1939), qui répertoria et fouilla des centaines de monuments mégalithiques du Morbihan, contribuant indirectement à la protection de sites comme KergonfalzCharles-Tanguy Le Roux, préhistorien breton contemporain, spécialiste du mégalithisme armoricain dont les travaux éclairent le contexte de monuments comme celui de Kergonfalz
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Frequently Asked Questions
Where is Dolmen sous tumulus de Kergonfalz located?
Dolmen sous tumulus de Kergonfalz is located in Bignan, Département 56 department, Bretagne region, France.
Is Dolmen sous tumulus de Kergonfalz open to visitors?
Dolmen sous tumulus de Kergonfalz is currently closed to visitors.