🇫🇷 France · Megalith
Dolmen de Kercado
Early Neolithic (c.3800–3600 BCE) · Carnac Neolithic (Tumulus culture)
Tumulus-capped passage grave (6.5 m passage) on Kercado ridge with hafted axe carving — Carnac tumulus evolution exemplar.
🇫🇷 France · Megalith
Tumulus de Dissignac
Early Neolithic · Atlantic Breton / Loire Neolithic (Castellic / Chasséen contact)
Double passage tumulus near Saint-Nazaire — two parallel graves (11 m and 9 m) under one 28 m mound, c.4300 BCE.