Which is the longest river in Europe?
The Volga River is the longest in Europe; its source is in the Valdai Hills, in a town known as Volgo-Verjovie, between the cities of Moscow and Saint Petersburg. The river can be divided into three sections: the Upper Volga, Middle Volga, and Lower Volga.
The Volga River is 3,531 kilometers (2,194 mi) long, making it the longest river in the European continent. Its basin has a surface area of 1,360,000 square kilometers (530,000 sq mi), and is the 18th largest in the world. Its delta is the largest river delta in Europe and forms where the river flows into the Caspian Sea downstream from the city of Astrakhan.
Currently, the river is polluted, with negative ecological consequences; the main fisheries in the Volga are degraded as a result. The pollution comes mainly from industrial and agricultural waste.
The Danube River is Europe's second longest at 2,845 km (1,768 mi). It is located in Central and Eastern Europe. The Danube was once a long-standing frontier of the Roman Empire and today flows through 10 countries. The Ural River ranks fourth in length at 2,428 km (1,509 mi) and the Rhine River is way down the list at 1,229 km (764 mi).
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