Pregolya River

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Pregolya River
Gvardeisk town russia view.jpg
The Pregolya River in Gvardeysk.
Country Russia
Basin features
Main source Instruch and Angrapa confluence
River mouth Vistula Lagoon
Baltic Sea
Basin size 15,500 km²
Physical characteristics
Discharge
  • Average rate:
    90 m³/s

The Pregolya or Pregola (Russian: Прего́ля; German: Pregel; Lithuanian: Prieglius; Polish: Pregoła) is a river in the Russian Kaliningrad Oblast exclave.

Overview[edit]

It starts as a confluence of the Instruch and the Angrapa and drains into the Baltic Sea through Vistula Lagoon. Its length under the name of Pregolya is 123 km, 292 km including the Angrapa. The basin has an area of 15,500 km². The average flow is 90 m³/s.

Euler's Seven Bridges of Königsberg problem was based on the river's bridges in Königsberg, now Kaliningrad.

The ancient name by Ptolemy of the Pregolya River is Chronos.

Cities and towns[edit]

Tributaries[edit]

See also[edit]

References[edit]

Coordinates: 54°41′N 20°23′E / 54.683°N 20.383°E / 54.683; 20.383