Taken from the on-site information board:
Passage grave
Neolithic megalithic tomb
This passage grave, dating from the Funnel Beaker Culture period, represents a late variant in the development of megalithic tombs. It was constructed between 3100 and 2950 BC.
During excavations, approximately 380 artefacts were recovered from this tomb. These include a clay vessel featuring a depiction of a face.
Among the grave goods found in the tomb are also numerous everyday objects and vessels dating from the period between 2900 and 2800 BC. This makes it clear that the tomb was used repeatedly as a burial site for more than 300 years.
The fact that the builders of the megalithic tombs carefully selected the stones used is clearly evident from the straight chamber walls and the well-fitting capstones. The gaps between the standing stones were filled, for the most part, with flat stones.
The burial chambers were originally covered with thick layers of earth and stone, creating mounds that were sometimes round and sometimes elongated. On the outside, these mounds were often additionally surrounded by boulders.