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). It is largely forested and is not - like the Ankum Heights- part of a series of ice age terminal moraines from the latest event of the Saalian glaciation, the so-called Drenthe I stage, but is a ridge of Jurassic rock that was pushed up during the folding towards the end of the Cretaceous period.

The highest hills in the Gehn are over 100 m high

Like the Wiehen Hills and the Ankum Heights, the Gehn belongs to the North Teutoburg Forest-Wiehen Hills Nature Park (Naturpark Nördlicher Teutoburger Wald-Wiehengebirge).

Elevations

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Amongst the main elevations on the Gehn are the:

  • Kettelsberg (108.6 m above sea level (NN))
  • Gehnberg (108.1 m)
  • Heseper Berg (107.9 m)
  • Frettberg (105.9 m)
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52°26′N 7°55′E / 52.433°N 7.917°E / 52.433; 7.917