Warta

The river Warta rises in central Poland and meanders greatly north-west to flow into the Oder, against the German border. About 808.2 kilometres long, it is Poland's second-longest river within its borders after the Vistula, and third-longest including the Oder, that flows also across Czech Republic and Germany. Its drainage basin covers 54,529 square kilometers and it is navigable from Kostrzyn nad Odrą to Konin, approximately half of its length. It is connected to the Vistula by the Noteć and the Bydgoszcz Canal near the city of Bydgoszcz.