Tumulus de Colombiers-sur-Seulles, Neolithic burial mound in Colombiers-sur-Seulles, France.

Tumulus de Colombiers-sur-Seulles is a Neolithic burial mound made of earth and stone that rises above the surrounding landscape. Inside sits a burial chamber lined with stone blocks where human remains were once placed.

This structure dates back roughly 6000 years to the Neolithic period and served as an important burial monument for early people living in this area. Scientists found burned bones and objects during early excavations that revealed much about this ancient culture.

The site is open to the public since 2005. The mound is compartmented by stone and wooden partitions and ringed by dry-stone walls alternating with sections of upright orthostats set as facing. The burial chamber, reached by a narrow corridor, held many human bones, several of them half-burnt.

The mound sits on a high plateau with good views of the valley below and is fairly easy to access if exploring the area. Visitors should wear comfortable shoes as the ground can be uneven, especially after rain.

The mound's chamber is about 2.5 m across and now lies open, its capstones gone; its outer wall is formed by six large monoliths with dry-stone walling between them. Two large stones at the western end may have framed an entrance to a second small chamber, or belonged to a kerb — the sources leave this unresolved.