Its natural borders are the Aller depression in the north, the Hildesheim Börde and, in places, the Mittelland Canal in the south the Oker valley in the east and the Hanoverian Moor Geest in the west.
Today it is bordered by the cities of Hanover and Brunswick and the towns of Burgdorf, Uetze, Vechelde, Peine and Lehrte.
The landscape is dominated by arable fields, in which rye, oats and potatoes produce good returns.
Near Hänigsen a loamy ground moraine rises close to the surface which improves the soil quality.
The sandy parts of the geest are mainly covered with pine woods exploited by the forestry industry.