Near the municipal border of Bergenhusen and Wohlde there are at least 15 burial mounds in the Reehahn woods. The largest preserved mound is 1.6 m high and measures almost 16 m in diameter. However, due to erosion, most of the mounds are now only visible as flat knolls about 30 cm high in the undergrowth. Since no finds have been discovered in the burial mounds so far, their age is undetermined. It is however assumed that they, as well as the “Hülsbarge” near Brunsholm, date from the early to middle Bronze Age (ca. 1800-1200 BC).
At the time of their formation, the burial mounds were not hidden in the forest, but it is believed that the surface of large areas of the geest were covered by heath. The mounds thus offered a wide view over the lowland towards the Treene and were easily visible from this river. As visible places of tradition, burial mounds were often associated with sagas, often about “underground people” and their treasures. This could be one of the reasons why the mounds were often plundered and the traces of this are still clearly visible today: numerous mounds have funnel- or trough-shaped marks in the centre, not to be confused with the more common fox or badger burrows.