The Locmariaquer megaliths are a Neolithic monumental complex in Brittany, France [1] [2]. The site includes the Er-Grah tumulus passage grave, the Table des Marchand dolmen, and the Broken Menhir of Er Grah—the largest known single block of stone ever transported and erected by Neolithic peoples [1] [3]. This massive menhir originally stood with 18 other stones and was likely broken around 4000 BC, measuring 20.6 meters in length [1] [3] [4].
Locmariaquer Megaliths

Also known as: Grande menhir spezzato di Locmariaquer, Grand Menhir, grand menhir brisé d'Er Grah, Locmariaquerin menhir, Locmariaquermegalittene, Men ar Hroëc'h, Men-er-Grah, menhir brisé d'Er Grah, menhir d'Er Grah, Menhir partido de Er Grah, Menhir partit d'Er Grah, Suur menhir
| Type | Megalithic stones |
|---|---|
| Period | < 4500 BC |
| Country | France |
| Coordinates | 47.5720° N, 2.9499° W |
France