taken from the on-site information board:
Remains of a megalithic tomb from the Neolithic
The burial chambers of large boulders were built in the Neolithic funnel beaker culture (about 2500 – 2000 BC). They probably served individual families as crypts or ossuaries.
Findings from the tombs such as flint axes, arrowheads and clay pots are interpreted as funerary objects. This burial chamber contained shards of at least 24 decorated clay pots. The occurrence of many potsherds next to the stone chambers, mainly on the south side in the passage and outside the hill, point to rituals of funerary worship or ancestor worship, which we can not explain yet.
Following the burials of the funnel beaker culture, as in many other stone graves, there were burials with grave goods of the younger single grave culture. They show that the descendants of the builders have adopted the material culture of an immigrant population, for whom individual graves under burial mounds are characteristic.