Pripyat River
Polesia is a marshy region lining the Pripyat River (Pripyat Marshes) in Southern Belarus (Brest, Pinsk, Kalinkavichy, Gomel), Northern Ukraine (in the Volyn, Rivne, Zhytomyr, Kyiv and Chernigov Oblasts), and partly in Poland (Lublin) and Russia (Bryansk). It is a flatland within the drainage basins of the Western Bug and Prypyat rivers. The two rivers are connected by the Dnieper-Bug Canal, built during the reign of Stanislaus II of Poland, the last king of the Polish–Lithuanian Commonwealth.