The Gehn is a small ridge of hills between Bramsche and Ueffeln in Germany's Central Uplands, that are an extension of the Wiehen Hills (German: Wiehengebirge). The ridge runs from northwest to southeast and is about 5 kilometres (3.1 mi) long and an average of 2 kilometres (1.2 mi) wide. The highest point is the Kettelberg which is 108 m above sea level (NN) high. The Gehn forms a link between the Wiehen Hills and the Ankum Heights (Ankumer Höhe).