Crucuno Dolmen — Plouharnel
Dolmen de Crucuno · Crucuno cromlech · Le Cromlech de Crucuno
Middle Neolithic (c.4000–3500 BCE)·Carnac–Morbihan Neolithic·🇫🇷 Brittany, Morbihan, Plouharnel, Erdeven, Crucuno hamlet, France
About
About Crucuno Dolmen — Plouharnel
Crucuno (Middle Neolithic c.4000–3500 BCE) near Crucuno hamlet between Plouharnel and Erdeven is a rare double monument: a 7.5-m classic dolmen passage grave with 40-t capstone 5 m high plus an adjacent 25 × 32 m quadrilateral cromlech enclosure of 26 standing stones (former?). Excavated by W. C. Lukis 1884 and Félix Gaillard, the dolmen's chamber 3 × 2 m opens south through a porthole slab to the stone rectangle, interpreted as a mini-carnac enclosure later quarried. The capstone's 40-t weight makes it Morbihan's heaviest.
Why it mattersOnly quadrilateral cromlech in Carnac region preserved with dolmen.
Open questions
Mysteries & theories
Mysteries
- 01Cromlech original — quadrangle vs circle quarried?
Theories
- 01Crucuno as Carnac mini-model condensing alignment + dolmen into one hamlet
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c.3800 BCE
- Period
- Middle Neolithic (c.4000–3500 BCE)
- Culture
- Carnac–Morbihan Neolithic
- Purpose
- Dolmen with associated quadrilateral stone-rectangle enclosure
- Excavation
- Excavated
c.3800 BCE
Dolmen quarried and 40-t capstone placed
c.3700 BCE
Quadrilateral stone enclosure added/arranged
1884
Lukis excavates dolmen; Gaillard plans cromlech
1930
Monument historique classified; cleared of gorse
On the ground
Structures & features
47.6243° N · 3.1265° W · 15 m · 2 mapped features
- Crucuno Dolmen — 40-t Capstone Chamberdolmen7.5-m dolmen chamber with 40-t capstone 5 m high and porthole entrance east to cromlech47.6244° N · 3.1265° W
- Crucuno Quadrilateral — 26-Stone Enclosurecromlech32 × 25 m rectangular enclosure of 26 granite menhirs 1–2 m surrounding open court north of dolmen47.6241° N · 3.1262° W
Gallery