The remains of settlements from the Early Middle Ages have been found on the Orensberg. As a result, archaeological investigations have taken place for a number of years under the direction of Jochen Braselmann. Trial digs were carried out and several working ditches, so-called mardelles, were opened. Finds included flint arrowheads dating to the New Stone Age, as well as pottery from the Early Middle Ages. In addition the former entrance in the interior of the circular rampart was uncovered.