Oder

Oder
The Oder in the city of Wrocław, Poland. Rędzińska Island before the construction of the Rędziński Bridge.
Polen (Poland), Deutschland (Germany), and Tschechien (Czech Republic)
Native name	Odra (Polish) Wódra (Upper Sorbian)
Location
Countries	Poland Czech Republic Germany
Cities	Ostrava Racibórz Opole Brzeg Wrocław Głogów Eisenhüttenstadt Frankfurt (Oder)/Słubice Kostrzyn nad Odrą Schwedt Szczecin
Physical characteristics
Source
• location	Fidlův kopec, Oderské vrchy, Olomouc Region, Czech Republic
• coordinates	49°36′47″N 017°31′15″E / 49.61306°N 17.52083°E / 49.61306; 17.52083
• elevation	634 m (2,080 ft)
Mouth	Szczecin Lagoon
• location	Baltic Sea, Poland
• coordinates	53°40′19″N 14°31′25″E / 53.67194°N 14.52361°E / 53.67194; 14.52361
Length	840 km (520 mi)
Basin size	119,074 km2 (45,975 sq mi)
Discharge
• location	Mouth
• average	567 m3/s (20,000 cu ft/s)

The Oder (/ˈoʊdər/ OH-dər, German: [ˈoːdɐ] ^ⓘ; Czech, Lower Sorbian and Polish: Odra;^[a] Upper Sorbian: Wódra [ˈwʊtʁa]) is a river in Central Europe. It is Poland's second-longest river and third-longest within its borders after the Vistula and its largest tributary the Warta.^[1] The Oder rises in the Czech Republic and flows 742 kilometres (461 mi) through western Poland, later forming 187 kilometres (116 mi) of the border between Poland and Germany as part of the Oder–Neisse line.^[2] The river ultimately flows into the Szczecin Lagoon north of Szczecin and then into three branches (the Dziwna, Świna and Peene) that empty into the Bay of Pomerania of the Baltic Sea.

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