🇫🇷 France · Megalith
Alignements de Lagatjar
Late Neolithic · Western Brittany Neolithic (Océan Atlantic Megalithic)
Crozon's triple stone rows — 72 menhirs (to 2.1 m) in three 200 m parallel alignments near Camaret.
🇫🇷 France · Megalith
Er Lannic Stone Circles
Early to Late Neolithic · Morbihan Atlantic
Tidal double stone circle on Er Lannic island, Gulf of Morbihan, half-submerged, 4500 BCE.
🇫🇷 France · Megalith
La Roche aux Fées
Late Neolithic · Western French Neolithic
Major passage dolmen near Rennes — 19.5 m passage of 45-tonne schist slabs, largest in Upper Brittany.
🇫🇷 France · Tumulus
Tumulus de Mont-Iouarn (Ploumilliau)
Middle to Late Neolithic · Armorican Neolithic
Passage mound tumulus at Ploumilliau (c. 3500 BCE), 30 m diameter, 5 m high, with granite passage and chamber, excavated 1950s revealing Neolithic pottery and human remains, overlooking Leguer valley.
🇫🇷 France · Megalith
Tumulus Saint-Michel at Carnac
Middle Neolithic (c.5000–3500 BCE) · Carn / Tumulus Culture (Early Armorican Neolithic)
Giant 125 m × 12 m tumulus covering passage grave (c.4500 BCE) with 39 jadeite axes — Brittany's largest mound at Carnac.
🇫🇷 France · Megalith
Pierres Plates — South Cairn Passage (Locmariaquer)
Late Neolithic to Early Bronze Age (3000–1800 BCE) · Late Neolithic Atlantic
Pierres Plates — South Cairn Passage (Locmariaquer) in Brittany, Morbihan, Locmariaquer, France is a Late Neolithic to Early Bronze Age (3000–1800 BCE) meg…