Vistula RiverThe Vistula River at Warsaw.
Vistula River, Polish Wisła, River, the largest in Poland. It rises on the northern slope of the Carpathian Mountains in southwestern Poland, flows in a curve through Warsaw and Torun, then empties into the Baltic Sea at Gdańsk. Most of its 651 mi (1,047 km) are navigable. Its tributaries include the Bug and Dunajec rivers.