North of the Haverkampsee lies the so-called Schwedenschanze. It is a line of dunes running from west to east, which is now divided into two parts by Detmolder Straße. The mighty old oaks that stand on the poor sandy soil that dominates here are remarkable.
The origin of the name Schwedenschanze is still unclear. Assumptions point to the Thirty Years' War, in which Sweden was also involved. However, the name of the dune band as Schwedenschanze only became common later, so that there is still no conclusive explanation for the naming.
The Senne is known for its wealth of inland dunes and for the high number of prehistoric burial mounds. Over 200 of these old Germanic burial sites have been identified for the entire Senne area. They were preferably created in prominent and exposed places, especially on dunes.
Gravestones were also erected on the highest dune crests of the Schwedenschanze in the Bronze and Iron Ages. A total of three burial mounds can be found here today. They are of overriding cultural-historical importance and demonstrate the early settlement history in the Upper Senne. Since many burial mounds were destroyed by military or cultural influences or devastated by illegal excavations, their preservation is particularly important.
The freely accessible Oesterholz-Haustenbeck Archaeological Educational Trail on Heidestrasse provides a vivid impression of the Bronze Age burial rites (around 1700 BC) and the burial mound cultures.