Vistula

Vistula (Polish Wisła, German Weichsel) is the name of a river in Poland, Central Europe. It is the country's longest river: it is 1,047 kilometers (678 miles) long and drains about 192,000 square kilometers (74,000 sq. miles).

The Vistula has its source in the south of the country, in the Beskidy mountains. It then continues to flow over the vast Polish plains, passing several large Polish cities along its way, including Cracow, Warsaw, Torun and Gdansk.

see also Geography of Poland