Instruch

The Instruch (russian: Инструч; german: Inster; lt, Įsrutis, Įsra; pl, Wystruć) 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 wate ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in 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 administr ...

. It begins northeast of

Dobrovolsk Dobrovolsk (russian: Добровольск, lit. "Voluntary Town"; german: Pillkallen (1510-1938) or ' (1938-1947); lt, Pilkalnis; pl, Pilkały) is a village in Krasnoznamensky District of Kaliningrad Oblast, Russia. It has a population of 1,6 ...

and, along with the river

Angrapa The Angrapa (, , , ) is a river that begins in northeastern Poland and ends in the Kaliningrad Oblast of Russia. Originating in Lake Mamry, it joins the 101-km-long Instruch at a point near Chernyakhovsk – variously assessed as lying 140, 16 ...

, forms 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 ...

near

Chernyakhovsk Chernyakhovsk (russian: Черняхо́вск) – known prior to 1946 by its German name of (Old Prussian: Instrāpils, lt, Įsrutis; pl, Wystruć) – is a town in the Kaliningrad Oblast of Russia, where it is the administrative center of ...

. Prior to 1945, the river was part of

German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

East Prussia East Prussia ; german: Ostpreißen, label=Low Prussian; pl, Prusy Wschodnie; lt, Rytų Prūsija was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 187 ...

. The town of Insterburg (now Chernyakhovsk) was named after the river's German name, ''Inster''. Rivers of Kaliningrad Oblast {{Russia-river-stub