Sépultures néolithiques de Port-Blanc, Neolithic burial site in Penvénan, France

Sépultures néolithiques de Port-Blanc is a Neolithic burial site at Roch-Las-en-Port-Blanc in Penvénan, Côtes-d'Armor. About fifty megalithic tombs once stood here, all classified as monuments historiques on 2 October 1936. Only one survives, a flat weathered grey slab of two overlapping sections, moved into the enclosure of the Chapelle Saint-Gonval in Penvénan.

These burial structures were created during the Neolithic period and rank among the oldest evidence of human settlement in Brittany. The site received official monument status in 1936, ensuring the archaeological remains would be preserved for future study.

The site's name, Roch-Las-en-Port-Blanc, refers to the hamlet in Penvénan where about fifty megalithic tombs once stood. All were listed as monuments historiques on 2 October 1936. Only one tomb survives, moved into the enclosure of the Chapelle Saint-Gonval, where a handwritten French sign marks it as prehistoric.

Only one burial chamber survives; it was moved into the enclosure of the Saint-Gonval chapel in Penvénan, so look for it there rather than at the Roch-Las-en-Port-Blanc spot. The slab lies beside a low hedge, with a handwritten French sign propped against its front edge. The ground around the chapel is uneven, so watch your footing.

About fifty megalithic tombs once stood at Roch-Las-en-Port-Blanc; all were classified as monuments historiques on 2 October 1936. Only one survives, and it was moved into the enclosure of the Saint-Gonval chapel in Penvénan, where the flat grey slab now lies beside a hedge.