The NoteÃÂ (; , ) is a river in central Poland with a length of (7th longest) and a basin area of . It is the largest tributary of the Warta river and lies completely within Poland.
It rises in the Kuyavian-Pomeranian Voivodeship and flows through Lake Gopà Âo and the town of Inowrocà Âaw. It reaches the voivodeship of Greater Poland in the historic Paà Âuki region south of Pià Âa. Further down in Lubusz Voivodeship, it empties into the Warta at Santok near Gorzów Wielkopolski. The river is usually subdivided into an upper part (NoteàGórna), running from its source to Nakà Âo, and a lower part (NoteàDolna) from Nakà Âo to its mouth into the Warta River. At Nakà Âo, the Bydgoszcz Canal, built in 1773/74, connects the NoteàRiver with the Brda river, a tributary of the Vistula, at Bydgoszcz.
The lower sections down from the mouth of the Drawa (near Krzyà ¼ Wielkopolski) are located within the broad Toruà Â-Eberswalde Urstromtal. These large wetlands, with only two historic river crossings at Santok and Drezdenko, are sparsely populated.
Most portions of the NoteÃÂ are navigable. Several locks and dams connect the Vistula and the Warta/Oder waterways.
In medieval times, the impenetrable marshes of the lower NoteàRiver formed the border between the Kingdom of Poland and the lands of the Pomeranian tribes on the Baltic coast. Disputed for centuries, the fortresses of Santok and Drezdenko finally were acquired by Margrave Conrad of Brandenburg on the occasion of his wedding with Constance of Poznaà Â, daughter of the Piast duke Przemysà  I of Greater Poland, in 1260.
After several unsuccessful attempts by the Polish Piasts to regain control, the area along the lower Noteàwas finally incorporated into the Brandeburg Neumark region. For centuries, the border with the Greater Polish Poznaà  Voivodeship ran between Drezdenko (Driesen) and Krzyà ¼ upstream in the east. Under the rule of Elector Joachim III Frederick of Brandenburg from about 1603, the fortress was rebuilt and further settlements were erected within the wetlands. First plans for a large-scale drainage and land amelioration were developed under King Frederick William I of Prussia in 1738/39, though not carried out until after the Seven Years' War in 1763.
After the First Partition of Poland in 1772 the adjacent Greater Polish lands up the river were annexed by the Kingdom of Prussia as the Netze District. The territory, created by the Prussian administration, was again ceded to newly established Duchy of Warsaw in 1807, but fell back to Prussia by resolution of the Vienna Congress in 1815.