Ensemble mégalithique
site archéologique
PA00108803
French architectural heritage database reference.
Classé (1981)
Status under the French Heritage Act.
Ensemble mégalithique — Site archéologique in Saint-Joachim (Loire-Atlantique) classé Monument Historique (listed) in 1981 under the French Heritage Act.
Identification & Protection
Mérimée reference
This monument is referenced in the French architectural heritage database (Mérimée) under the identifier PA00108803. Full archival records are published by the Ministère de la Culture at pop.culture.gouv.fr.
Protection status
The building is classé Monument Historique (listed) (since 1981), the highest French-law category for heritage immeubles.
Ensemble mégalithique : classement par arrêté du 14 mai 1981
Ownership
Current legal status: propriété d'une société privée.
Location & Access
Commune and département
Located in Saint-Joachim, Loire-Atlantique, within the Pays de la Loire region of France.
Coordinates
GPS coordinates: 47.3973°N, -2.2748°E (WGS 84).
Nearby protected sites
| Monument | Commune | Protected |
|---|---|---|
| Villa de l'Oiselinière | Gorges | 1997 |
| Immeuble de Nantes | Nantes | 1954 |
| Chapelle du Vieux Bourg | Saint-Sulpice-des-Landes | 1977 |
| Château de Clisson | Clisson | 1924 |
| Menhir dit La pierre de Saillé | Guérande | 1984 |
Loire Context
Architectural context
Built or restructured in the Néolithique.
Relative significance
Protected earlier than the median monument of the département, reflecting its recognized stature.
UNESCO landscape
The Loire Valley is inscribed on the UNESCO World Heritage list since 2000 as a cultural landscape. Read the anchor page: Abbey Church of Saint-Savin sur Gartempe.
Frequently asked questions
Where is Ensemble mégalithique located?
Ensemble mégalithique is located in the commune of Saint-Joachim (Loire-Atlantique).
When was Ensemble mégalithique protected?
It was classé Monument Historique (listed) in 1981 under the French Heritage Act, with reference PA00108803 in the Mérimée database.
When was Ensemble mégalithique built?
The main construction campaign dates from the Néolithique.
Data source: Ministère de la Culture — base Mérimée (data.culture.gouv.fr). Last updated: April 14, 2026.
Geographic location
Coordinates: 47.3973°N, -2.2748°E