Opava (river)

Opava

The Opava near Háj ve Slezsku
Country Czech Republic, Poland
Basin
Main source Hrubý Jeseník
520 meters (1,710 ft)
50°07′33″N 17°22′47″E / 50.1257°N 17.3796°E / 50.1257; 17.3796 (Primary source of Opava)
River mouth Oder
49°50′01″N 18°13′16″E / 49.8336°N 18.2212°E / 49.8336; 18.2212 (Mouth of Opava)Coordinates: 49°50′01″N 18°13′16″E / 49.8336°N 18.2212°E / 49.8336; 18.2212 (Mouth of Opava)
Physical characteristics
Length 119 km (74 mi)

The Opava (Czech: Opava, Polish: Opawa, German: Oppa) is a river in the north-eastern Czech Republic, a left tributary of the Oder river. It originates at the confluence of Bílá (White), Střední (Middle) and Černá (Black) Opava in Vrbno pod Pradědem and runs over 119 km (74 mi) to the Oder at Ostrava, with some 25 km (16 mi) forming the border with Poland.

After the 1742 First Silesian War the Opava river in the Duchy of Troppau by the terms of the Treaty of Breslau became the border between Austrian and Prussian Silesia (the later Province of Silesia). After World War I the demarcation was confirmed by the 1919 Treaty of Saint-Germain-en-Laye as the border between Czechoslovakia (Czech Silesia) and the Second Polish Republic.

Towns


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