The Baumberge are the highest hills in the natural regions of Münsterland and Kernmünsterland with a maximum height of 187.6 m above sea level (NHN).

The Baumberge and their immediate foothills are subdivided into natural regions as follows:[3] The Baumberge lie within the Münsterland district of Coesfeld running in a northwest to southeast direction between Billerbeck in the west, the Rosendahl villages of Darfeld in the northwest, Havixbeck in the east, Nottuln-Schapdetten in the southeast and Nottuln in the south, Schapdetten being situated on the southeastern slopes of the hills themselves.

On the other side of the Nottuln–Billerbeck state road (Landesstraße) the hills are separated by a 131-metre-high (430 ft) saddle from the Coesfeld-Darup Heights which are up to 166 m high, the southwest foothills of the southern slopes.

The Baumberge rise over the otherwise flat landscape to around 100 m reaching their highest point in the Westerberg 187 m above NHN; whose summit is crowned by the Longinus Tower.

The rainwater that drains away reappears at the edges of the Baumberge in spring horizons again; sometimes even entire streams can appear at the surface after just a few metres.