The West Hesse Highlands are one of the major natural regions of Germany (no. 34 or D46) and are part of the Central European Uplands as well as being the watershed between the Rhine and the Weser. They comprise a line of hill ranges in the west, running north-northeast to south-southwest on the shoulder of the Rhenish Massif and including the Kellerwald, and a fault trough in the east, the West Hesse Depression.