The river Bille's a small, slow-flowing river in Stormarn, Schleswig-Holstein, a right tributary of the Elbe. Its source's near Linau, north of the Hahnheide forest. It then flows south of Trittau, representing the border between Stormarn and Lauenburg, continues south of Reinbek and reaches the river Elbe near Billwerder. A lot of old estates and tasteful parks are laid out along its riverbank. Its total length's 65 km. The Bille's one of three rivers which flow through the city of Hamburg, th… (More on Bille)