Pilica (river)

The Pilica is a river in central Poland, and the longest left tributary of the Vistula river, with a length of 333 kilometres (8th longest). All 9,258 km2 of its basin area is in Poland. It flows through the Polish Jura, after which it enters Central Polish Plains. Pilica flows into the Vistula near the village of Ostrówek, in a geographical region of Central Vistula Valley. In 1974, a dam was built near Sulejów, resulting in the creation of man-made reservoir Sulejów Lake, which has the area of 2,700 hectares. The region in the basin of the Pilica is sometimes called Nadpilicze, and the river itself marks the boundary between Lesser Poland, and two other historical provinces of the country, Greater Poland and Mazovia. The first "open-air river museum" in Poland, the Open-air museum of Pilica river, is located on the waterway and the Blue Springs nature reserve lies next to the river.