Barnenez Architecture: 11 Tombs and Construction Techniques. Barnenez is called a passage tomb but actually comprises 11 passage tombs grouped under one cairn Chambers A, B, C are more megalithic in style, while E, F, G, G1, I, J use cobbled dry stone walling Tomb B is particularly megalithic and would have initially looked like a dolmen

Barnenez isn't just one tomb—it's 11 passage graves (labeled A-J plus G1) grouped under one massive cairn! Chambers A-C and H use large megalithic stones, while others employ cobbled dry stone walling. The eastern end predates the western, suggesting sequential construction over time. The sophisticated Neolithic engineering here is incredible ⚒️

Key facts:

- Barnenez is called a passage tomb but actually comprises 11 passage tombs grouped under one cairn

- Chambers A, B, C, and H are more megalithic in style, while others use cobbled dry stone walling

- Tomb B is particularly megalithic and would have initially looked like a dolmen

- The DRY STONE wall built tombs are actually the OLDEST, built around 4,850-4,450 BC—newer tombs used megalithic orthostats instead

- Some tombs combine both orthostats and dry stone walling

Key Facts

  • Barnenez is called a passage tomb but actually comprises 11 passage tombs grouped under one cairn
  • Chambers A, B, C are more megalithic in style, while E, F, G, G1, I, J use cobbled dry stone walling
  • Tomb B is particularly megalithic and would have initially looked like a dolmen
  • The dry stone wall built tombs are typically assumed to be earlier than the megalithic ones
  • Some tombs combine both orthostats and dry stone walling
  • The monument was likely built in two stages, with the eastern section first
  • The tombs may have been added sequentially rather than all at once
  • Internal walls were interpreted as structurally restraining stone movement
  • The monument was described as having a stepped appearance, though this is debated
  • Corbelled vaulted roofs represent highly complex construction skill

Related site: Barnenez — view location, images, and history on the Ancient Nerds map.

Source: This Huge Megalithic Tomb in France was built 2,000 years before the Pyramids by The Prehistory Guys