Truppenübungsplatz Bergen
The Meiße rises south of Wietzendorf in the nature reserve of Großes Moor (near Becklingen). Originally the upper course of the upper Wietze (Örtze) was the headstream of the Meiße before the Großes Moor diverted the Wietze into the River Örtze at a point south of the sharp bend in the river near Wietzendorf as a result of headward erosion. The Meiße flows through the villages of Bleckmar, Hasselhorst (in the unparished area of Lohheide on the Bergen-Hohne Training Area), Belsen, Hörsten, Gudehausen and Hartmannshausen (all three also belonging to Lohheide), as well as Meißendorf, and discharges into the Aller south of Hodenhagen after about .