It's hard to imagine what this monument may have looked like when it was new, which is about 5500 years ago. It used to be just a chamber that was covered by a huge cairn. No passage at all. The cairn is very much destroyed nowadays, and there has been made an entrance via a staircase down to the chamber. 106 axes, nine emerald-green pendants and 49 callais beads were found in this grave during the excavation.

Mané-Er-Hroëck is situated about 1,5 km south-east from Er Grah and Tables des Merchands.