The Łyna (; ; ; - ''Lava''), is a

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...

that begins in northern

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...

Warmian-Masurian Voivodeship Warmian-Masurian Voivodeship or Warmia-Masuria Province or Warmia-Mazury Province (in pl, Województwo warmińsko-mazurskie, is a voivodeship (province) in northeastern Poland. Its capital and largest city is Olsztyn. The voivodeship has an ar ...

and ends in

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-eig ...

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 admin ...

. The Łyna is a

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...

of the

Pregolya The Pregolya or Pregola (russian: Прего́ля; german: Pregel; lt, Prieglius; pl, Pregoła) is a river in the Russian Kaliningrad Oblast exclave. Name A possible ancient name by Ptolemy of the Pregolya River is Chronos (from Germanic *''h ...

River, and has a total length of 264 km (207 km in Poland and 57 km in Russia) and a basin area of 7,126 km² (5,298 km² in Poland).Statistical Yearbook of the Republic of Poland 2017

Statistics Poland Statistics Poland (formerly known in English as the Central Statistical Office ( pl, Główny Urząd Statystyczny, popularly called GUS)) is Poland's chief government executive agency charged with collecting and publishing statistics related to th ...

, p. 85-86 It is connected to

Lake Mamry Mamry (, ) is a lake in the Masurian Lake District of Poland's Warmia-Mazury Province. It is the second largest lake in Poland, with an area of 104 km2. The lake's maximum depth is 44 m with an average depth of 11 m. It actually comprises ...

by the 18th-century Masurian Canal. In historical terms, the river fell within the area of the medieval

Monastic state of the Teutonic Knights The State of the Teutonic Order (german: Staat des Deutschen Ordens, ; la, Civitas Ordinis Theutonici; lt, Vokiečių ordino valstybė; pl, Państwo zakonu krzyżackiego), also called () or (), was a medieval Crusader state, located in Cen ...

established in the 13th century. The adjacent territory became later known as East Prussia, and then an easternmost province of

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

until 1945 when, in accordance with border changes promulgated at the

Potsdam Conference The Potsdam Conference (german: Potsdamer Konferenz) was held at Potsdam in the Soviet occupation zone from July 17 to August 2, 1945, to allow the three leading Allies to plan the postwar peace, while avoiding the mistakes of the Paris P ...

, it was split between Poland and the

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

. Cities and towns founded by the

Teutonic Knights The Order of Brothers of the German House of Saint Mary in Jerusalem, commonly known as the Teutonic Order, is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. It was formed to aid Christians o ...

along the river Łyna (''Alnā'') include:

References

Rivers of Poland Rivers of Kaliningrad Oblast {{Germany-hist-stub