Drainage basins of Lithuania
The Neman River, which drains into the Baltic Sea, drains 42,970 square kilometres within Lithuania (65.9% of its area). The river rises in Belarus, southeast of Lithuania, and receives waters from the Šešupė River, which rises in Poland.
The Lielupe River basin encompasses 10,690 square kilometers within Lithuania. The Lielupe flows northward into Latvia and into the Gulf of Riga, a bay of the Baltic Sea. Its tributaries include three rivers that rise in Lithuania (the Svete, Mūša, and Nemunėlis (Mēmele)).
The Pregolya River (also known as the Pregel) flows in southwestern Lithuania near its border with the Kaliningrad Oblast, later entering the Baltic via the Vistula Lagoon. Its basin includes 70 square kilometers of Lithuanian territory.
2,870 square kilometers of the country’s area drain directly into the Baltic.
- "FAO's Information System on Water and Agriculture – Lithuania". FAO. Retrieved 2011-11-03.