The Dosse is 94 kilometres (58 mi) long, with its source on the border between Mecklenburg-Vorpommern and Brandenburg, arising out of three small brooks that unite after four kilometres. It flows generally south, through Wittstock, Wusterhausen and Neustadt an der Dosse, before joining the Havel near Havelberg in Saxony-Anhalt. The total catchment area is 1,268 square kilometres (490 sq mi).
Course of the Dosse through Brandenburg and Saxony-Anhalt