The Innerste Uplands cover the catchment area of the Innerste southeast of Hildesheim and southwest to south of Salzgitter as far as Goslar and Seesen on the northwestern edge of the Harz. To the north the area is bounded by the Hildesheim Börde, to the west by the Leine Uplands and to the southeast by the North Harz Foreland. Its central and southern areas are dominated by the Ambergau, a depression dissected by the Nette, a tributary of the Innerste.
The ridges of the Innerste Uplands are predominantly covered with deciduous forest, particularly beech woods. The rivers run through gently rolling depressions, covered with a thick layer of loess; this includes the basin of the Ambergau. The fertile soils are heavily used for arable farming. Also part of the landscape are quarries or open-cast mines, nowadays largely closed and sometimes filled with water, in which Keuper sandstone was extracted during the Middle Ages.
Hills and mountains
Eight ridges belong to the Innerste Uplands. They are, in order of height: