The Šešupė (; ; ; ) is a 298 km long

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

Statistical Yearbook of Lithuania 2014
p. 12 that flows through

Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...

(27 km), Lithuania (158 km), and

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

(62 km). The river flows for 51 km along the border between the

Kaliningrad Oblast Kaliningrad Oblast (russian: Калинингра́дская о́бласть, translit=Kaliningradskaya oblast') is the westernmost federal subject of Russia. It is a semi-exclave situated on the Baltic Sea. The largest city and admini ...

, an

exclave An enclave is a territory (or a small territory apart of a larger one) that is entirely surrounded by the territory of one other state or entity. Enclaves may also exist within territorial waters. ''Enclave'' is sometimes used improperly to deno ...

of Russia, and Lithuania. The Šešupė originates near the Polish town of

Szeszupka Szeszupka is a village in the administrative district of Gmina Jeleniewo, within Suwałki County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately north-west of Jeleniewo, north of Suwałki, and north of the regional capit ...

, about 10 miles from the Polish-Lithuanian border, and flows into the

Nemunas The Neman, Nioman, Nemunas or MemelTo bankside nations of the present: Lithuanian: be, Нёман, , ; russian: Неман, ''Neman''; past: ger, Memel (where touching Prussia only, otherwise Nieman); lv, Nemuna; et, Neemen; pl, Niemen; ...

near the town of

Neman The Neman, Nioman, Nemunas or MemelTo bankside nations of the present: Lithuanian: be, Нёман, , ; russian: Неман, ''Neman''; past: ger, Memel (where touching Prussia only, otherwise Nieman); lv, Nemuna; et, Neemen; pl, Niemen; ; ...

on the border between Lithuania and Kaliningrad Oblast. Major towns and cities along the river, from the Nemunas to the source, are: Kudirkos Naumiestis, Pilviškiai, Marijampolė and Kalvarija. There are parts of Kaliningrad and Lithuania that are on the opposite side of the river, including a small island that is mostly Russian but has an area belonging to Lithuania. It is the fourth-longest river in Lithuania. Šešupė1

References

Rivers of Lithuania Rivers of Poland Rivers of Podlaskie Voivodeship Rivers of Kaliningrad Oblast International rivers of Europe Lithuania–Russia border {{Lithuania-river-stub