The Saint-Michel Tumulus, located east of Carnac in Brittany, France, is the largest grave mound in continental Europe, measuring 125 metres long, 60 metres wide, and 10 metres high. Built around the mid-5th millennium BC in multiple stages, it contains sealed burial chambers within a layered construction of stone, silt, and hardpan. Excavations beginning in 1862 uncovered prestigious funerary goods: 11 large polished stone axe heads, 25 fibrolite axes, 97 disc beads, 10 variscite pendants, and bone remains. Classified as a Monument historique since 1889.
Saint-Michel Tumulus

| Type | Mound/tumulus |
|---|---|
| Period | < 4500 BC |
| Country | France |
| Coordinates | 47.5880° N, 3.0735° W |
France