The Oberwälder Land is a natural region in the extreme east of the German state of North Rhine-Westphalia with small elements parts in Hesse and Lower Saxony. It consists of Muschelkalk upland, heavily dissected by the Nethe and its tributaries, between the Eggegebirge to the west, the Lippe Uplands to the north, the Weser Valley around Holzminden to the east, the West Hesse Depression to the southeast and the Warburg Börde to the south.