With a height of 275.9 m above sea level it is, from a topographical point of view, not a particularly impressive eminence in this part of the Wiehen Hills, because, in the immediate vicinity are considerably higher summits, such as the 320 m high Heidbrink just under 1 km to the south.

East of the Reinberg on the other side of a valley bottom rises the Heidkopf, west of the Meesenkopf, on the summit of which there was once a fortification.

Reineberg Castle was, as mentioned, according to a treaty of 1306, initially in the common ownership of the neighbouring prince-bishops of Minden and Osnabrück.

In 1412 we find the knight (Ritter), Dietrich von Münchhausen, as the tenant of the castle, in a dispute with his landlord, Bishop Wulbrand, and the cathedral chapter of Minden, because he had enfeoffed the Reineberg without permission to Count Nicholas II of Tecklenburg.

Tecklenburg troops advanced to do battle, but were driven off by Lübbecke's townsfolk with support from the seneschal (Drost) of Limberg, Allhard von dem Busche.

Reineberg Castle was turned into a strong fortress according to a contemporary account by the Minden cathedral canon, Tribbe, dating to the 15th century.

On 9 September 1636, Imperial Staff Sergeant (Oberwachtmeister) Heister, had the entire record office on the Reineberge burned.

On 28 March 1673 Münster troops captured Lübbecke and Reineberg in the course of the Franco-Dutch War, because Brandenburg was allied with the Netherlands.

In this spring is supposed to be an underground vault with a magic entrance in which "King Weking's silver cradle stands".

[1] Even today the Reineberg is the name of a village in the collective municipality of Hüllhorst south of the Wiehen Hills (Ahlsen-Reineberg).