Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Uckermark is a historical region in northeastern Germany. It is now divided between the Uckermark District of Brandenburg and the Uecker-Randow District of Mecklenburg-Vorpommern. Its traditional capital is Prenzlau. The region is named after the Uecker River, which is a tributary of the Oder; the name Uckermark means "March of the Uecker". The river''s source is close to Angermünde, from where it runs northward to Mecklenburg-Vorpommern. The Oder River, forming the German-Polish border, bounds the region in the east. The western parts of the Lower Oder Valley National Park are located in the Uckermark.