Łyna (river)
The Łyna, is a river that begins in northern Poland's Warmian-Masurian Voivodeship and ends in Russia's Kaliningrad Oblast.
The Łyna is a tributary of the Pregolya River, and has a total length of 264 km and a basin area of 7,126 km². It is connected to Lake Mamry by the 18th-century Masurian Canal.
In historical terms, the river fell within the area of the medieval Monastic state of the Teutonic Knights established in the 13th century. The adjacent territory became later known as East Prussia, and then an easternmost province of Germany until 1945 when, in accordance with border changes promulgated at the Potsdam Conference, it was split between Poland and the Soviet Union.
Cities and towns founded by the Teutonic Knights along the river Łyna include: